Logical ReasoningDifficulty: Easy

PT15 S2 Q1 Explanation

Walter: Although cigarette smoking

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

TopicsSufficient Assumption

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

Walter: Although cigarette smoking is legal, it should be banned on all airline flights. Cigarette smoking in the confines of an aircraft exposes nonsmokers that they cannot avoid.

What this question is testing

Sufficient Assumption

Your task

Find the assumption that, if added, guarantees the conclusion follows.

Common trap

Answers that only partly bridge the gap, leaving the conclusion unproven.

Winning move

Identify the new term in the conclusion and pick the choice that links it to the evidence.

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

The question
1.

Which one of the following principles, if established, would justify the proposal put

Answer choices

  1. Correct91% picked this

    People should be prohibited from engaging in an otherwise legal activity in those situations in which that activity would

    Why this is right

    Answer A is correct.

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

  2. Trap5% picked this

    An activity should be banned only if most situations in which a person engages in that activity would

  3. Trap3% picked this

    A legal activity that has the potential for causing harm to others in certain situations should be modified in those

  4. Trap1% picked this

    People who regularly engage in an activity that has the potential for harming others when that activity takes place in certain situations

  5. Trap0% picked this

    If an activity is legal in some situations in which a person’s engaging in that activity could harm others, then that activity

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