Logical ReasoningDifficulty: Hard

PT21 S2 Q22 Explanation

Antinuclear activist: The closing of the nuclear power plant

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsFlaw

Keep going in LSAT Lab

  • Save & drill this skill build targeted practice sets from questions like this one

  • Video walkthroughs watch every question solved step by step

  • 81 official LSATs as questions, timed sections & full-length tests

Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Stimulus

Antinuclear activist: The closing of the nuclear power plant is a victory for the antinuclear cause. It also represents a belated acknowledgment by the cannot operate such plants safely.

Nuclear power plant manager: It represents no such thing. The availability of cheap power from nonnuclear sources, together with the cost of mandated safety inspections and safety repairs, made continued operation uneconomic. Thus it considerations that dictated the plant’s closing.

What this question is testing

Flaw

Your task

Describe the reasoning error the argument actually commits.

Common trap

Answers that name a real logical flaw the argument doesn't actually make.

Winning move

Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
22.

The reasoning in the manager’s argument is flawed because

Answer choices

  1. Not an Objection14% picked this

    fails to acknowledge that the power industry might now believe nuclear power plants to be unsafe even though this plant was

    Since this answer begins with a fails to consider / ignores the possibility, we treat the idea that follows like a Weaken answer choice. Can we hurt this manager's argument by saying that "the power industry might now believe nuclear power plants are unsafe, even though this plant wasn't closed for safety reasons"? No, because the author's conclusion is that "THIS plant was not closed for safety considerations / this plant's closing was not an acknowledgment that nuclear plants can't be operated safely." If we grant the author that this plant wasn't closed for safety reasons, then she won the case. She got us to admit that her Intermediate Conclusion is correct.

  2. Not an Objection9% picked this

    overlooks the possibility that the sources from which cheap power is available might themselves be

    Since this answer begins with a fails to consider / ignores the possibility, we treat the idea that follows like a Weaken answer choice. Can we hurt this manager's argument by saying that "the cheaper nonnuclear sources of power also have safety concerns"? No, because the author is only claiming that this nuclear plant was shut down for economic, not safety, considerations. We can only weaken the author with an answer that helps us to argue that "this nuclear plant was shut down for safety considerations (at least in part)". Talking about nonnuclear energy sources won't help us with that goal.

  3. Out of Scope14% picked this

    mistakes the issue of what the closure of the plant represents to the public for the issue of what the managers’

    Out of Scope: what it represents to public This answer is structured like mistakes X for Y When we say, "Sorry, I mistook you for my friend Bob", we're saying the incorrect perception was Bob but the reality was you. So we would analyze these answers asking ourselves, "Was the reality X, and the misconception Y"? But we might not even have to think that hard here. Once we see this answer is saying the author confused "what this plant closure represents to the public", we can stop. The argument was never talking about how the public interprets the plant closure. This argument centers around whether the plant (in actuality) closed for purely economic considerations or whether safety considerations were a part of it.

  4. Out of Scope: contradiction2% picked this

    takes as one of its premises a view about the power industry’s attitude toward nuclear safety that

    The activist's view is that the closing of the nuclear plant is a victory for the antinuclear cause. Did the manager have a contradictory premise? Did she say "this closing does not represent a victory for the antinuclear cause"? No. The activist's view is also that the closing of the nuclear plant is an acknowledgement by the power industry that they can't operate such plants safely. Did the manager have a contradictory premise? No. Her premise is that "availability of cheap nonnuclear power and the high cost of safety inspections/repairs made continued operation uneconomic". That is not contradicting the activist. We might say that the manager's first sentence or last sentence seems to contradict the activist's view, but two issues remain: 1. these are the manager's conclusions, not her premises 2. so what if the manager contradicts something the activist said! Where is there a rule that says "When X is making an argument that rebuts Y, X is not allowed to contradict anything Y said"? We're trying to judge how the internal reasoning of the manager's argument is flawed. We don't really care what the activist said or whether any part of the manager's argument contradicts something the activist said.

  5. Correct61% picked this

    counts as purely economic considerations some expenses that arise as a result of the need

    Why this is right

    This gets to the Self-Contradiction error we spotted. The manager is saying that plant closed for economic, not safety considerations. What were these purely economic considerations? 1. cheap power is available from nonnuclear sources 2. the cost of mandated safety inspections and safety repairs is high Okay, well isn't #2 a safety consideration as well as an economic consideration? Since we need to inspect the nuclear power plant and repair it in order to comply with safety guidelines, the cost of inspections and repair arise as a result of the need to take safety precautions. Thus, it's unfair to say that safety considerations played no role in the plant closing.

    Skill tested: Flaw · how this choice captures the argument's function is the move to repeat next time.

Continue the review in LSAT Lab

Save this question, watch the video walkthrough, and drill similar questions in your LSAT Lab account.

LSAT Lab

Turn this review into a targeted study plan.

Save this question, drill more like it, watch the video walkthrough, and track your progress in your LSAT Lab account.

Start practicing free