Logical ReasoningDifficulty: Hard

PT21 S2 Q17 Explanation

Members of the Amazonian Akabe

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

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Stimulus

Members of the Amazonian Akabe people commonly take an early-morning drink of a tea made from the leaves of a forest plant. Although they greatly enjoy this drink, at dawn they drink it only in small amounts. Anthropologists hypothesize that since this tea is extraordinarily high in caffeine, the explanation for the caffeine intake would destroy the surefootedness that their daily tasks require.

What this question is testing

Weaken

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

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

The question
17.

Which one of the following, if true, most seriously calls the anthropologists’

Answer choices

  1. No Impact11% picked this

    The drink is full of nutrients otherwise absent from the

    If anything, this gives more reason to drink lots of this tea every morning, so the fact that the Akabe aren't drinking a lot would almost help strengthen the author's case that it's because they're scared to drink too much.

  2. No Impact34% picked this

    The Akabe also drink the tea in the evening, after their day’s

    We're trying to explain / understand their morning-drinking habits. Drinking tea at night has a different set of intangibles, so it wouldn't be too fair to compare. But the fact that this answer doesn't even specify whether the amount they drink in the evening is more / less / equal to what they drink in the morning makes it totally unclear what impact this answer would have.

  3. Correct47% picked this

    The leaves used for the tea contain a

    Why this is right

    This provides an Alternate Explanation for why they only drink a small amount in the morning. We could say, "No, author, they aren't keeping themselves to a few sips because they're worried about the caffeine inside. They're worried about the narcotic!" If they chug this tea, they'll be crazy high at work. Possibly hallucinating. :) Narcotic = a drug that affects your psychology, for recreational purposes Soluble = dissolves in a liquid (making it easier for your body to absorb)

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

  4. Strengthens, if anything2% picked this

    Akabe children are introduced to the tea in only a

    Common sense tells us that children don't usually drink caffeine (they have plenty of energy), so this fact is very consistent with the author's hypothesis that this tea would tweak you out. If we had espresso or Jolt cola lying around the house, we would probably water it down before giving it to kids. This doesn't give us an alternate explanation for why the adults only a tiny amount in the morning, nor does it undermine the idea that they merely sip the tea so that they don't get too jittery off the caffeine.

  5. No Impact6% picked this

    When celebrating, the Akabe drink the tea in

    This is consistent with the author's hypothesis (and certainly doesn't offer an alternate explanation for why they only drink a little in the morning). If they drink a lot at parties, they'll get super jittery from the caffeine (the author would think), but that's not necessarily a problem when celebrating. The author was only thinking that being jittery would be avoided when they need to knock out their daily tasks (i.e work).

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