Logical ReasoningDifficulty: Easy

PT111 S1 Q19 Explanation

Lathyrism, a debilitating neurological disorder

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

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Stimulus

Lathyrism, a debilitating neurological disorder caused by the consumption of the legume Lathyrus sativus, is widespread among the domestic animals of some countries. Attempts to use rats to study lathyrism have generally failed. Rats produce the symptoms associated with the disorder.

What this question is testing

Most Supported

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
19.

Which one of the following is most strongly supported by the

Answer choices

  1. Trap6% picked this

    The physiology of rats is radically different from that of

  2. Trap2% picked this

    The rats did not consume as much Lathyrus sativus as did the domestic animals

  3. Correct88% picked this

    Not all animal species are equally susceptible

    Why this is right

    Answer C is correct.

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

  4. Trap3% picked this

    Most of the animals that can contract lathyrism

  5. Trap1% picked this

    Laboratory conditions are not conducive to the development

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