Logical ReasoningDifficulty: Medium

PT114 S2 Q23 Explanation

Reviewer: Although finalism—the

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

TopicsParallel Flaw

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Stimulus

Reviewer: Although finalism—the view that there are purposes in nature—has been universally rejected, this book launches another attack on that view. Its arguments are based on a complete misunderstanding of the operation of pure chance in nature and so it fails is clearly more plausible than people have thought.

What this question is testing

Parallel Flaw

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence 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
23.

Which one of the following is most closely parallel in its flawed reasoning to the flawed reasoning in

Answer choices

  1. Trap11% picked this

    No literary historian still believes the claim that a single author wrote every word of this collection of works. Evidence on which that claim

  2. Trap5% picked this

    Few botanists deny that a recently discovered fern is the same species represented in ancient fossils. The botanists who first discovered this specimen deny

  3. Correct77% picked this

    Bicycle engineers no longer believe that aluminum is as good a frame material as titanium. An engineer at Ace Bicycles has argued that aluminum

    Why this is right

    Answer C is correct.

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

  4. Trap2% picked this

    Experts agree that red wines from France’s Bordeaux region are the best in the world, and five are on this year’s list of the

  5. Trap4% picked this

    Sociologists agree that the psychological development of children may be impaired by watching too much television, though researchers argued recently that the quality of

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