Logical ReasoningDifficulty: Easy

PT13 S2 Q14 Explanation

The book To Save the Earth

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

TopicsNecessary Assumption

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Stimulus

The book To Save the Earth is so persuasive that no one who reads it can fail to heed its environmentalist message. Members of the Earth Association have given away 2,000 copies in the last month. Thus the Earth Association can justly in one month converted to the environmentalist cause.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

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

The question
14.

Which one of the following is an assumption on which the

Answer choices

  1. Trap2% picked this

    No other environmental organization gave away copies of To Save the Earth during the month in which the Earth Association

  2. Trap0% picked this

    The people to whom the Earth Association gave copies of To Save the Earth would not have been willing to pay to

  3. Trap0% picked this

    The copies of To Save the Earth given away by members of the Earth Association were

  4. Correct81% picked this

    None of those who received To Save the Earth from a member of the Earth Association were already committed to the environmentalist

    Why this is right

    Answer D is correct.

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

  5. Trap16% picked this

    Every recipient of To Save the Earth will embrace the environmental program advocated by

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