Logical ReasoningDifficulty: Easy

PT122 S4 Q22 Explanation

Economist: Some people argue that

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

Start practicing free

Free to start

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

Economist: Some people argue that when large countries split into several small countries, the world economy is harmed by increased barriers to free trade in the form of an increased number of national tariffs. But small countries do not think of themselves large countries does not increase barriers to free trade.

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
22.

Which one of the following, if assumed, enables the economist’s conclusion to

Answer choices

  1. Trap1% picked this

    A country has the right to split into smaller countries even if some of the economic consequences of division

  2. Trap5% picked this

    Increasing the number of countries in the world would strengthen rather than weaken

  3. Correct82% picked this

    All countries that impose national tariffs or other barriers to free trade think of themselves

    Why this is right

    Answer C is correct.

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

  4. Trap2% picked this

    There is strong evidence that national tariffs and other barriers to free trade harm

  5. Trap9% picked this

    Large countries tend to be more economically self-sufficient than

Continue the review in LSAT Lab

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

Save and practice this skill
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