Logical ReasoningDifficulty: Easy

PT146 S2 Q9 Explanation

Even though she thought the informant

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

TopicsSufficient Assumption

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Stimulus

Even though she thought the informant was untrustworthy, the journalist promised not to reveal his identity so long as the information he provided did not turn out to be false. However, she will publicly reveal the informant's identity if she is ordered to do so by a judge or her editor. After surely reveal the informant's identity even if the the information is accurate.

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
9.

The conclusion of the argument follows logically if which one of the

Answer choices

  1. Unrelated to Goal1% picked this

    The information that the informant provided is known to

    We're only shopping for answers that allow us to establish that the judge or her editor will order her to reveal the informant's identity. This answer comes nowhere close to that goal.

  2. Opposite Logic6% picked this

    The journalist's editor will not order her to reveal the informant's identity unless the information is accurate

    We're shopping for answers that allow us to establish that the judge or her editor will order her to reveal the informant's identity. Meanwhile, this answer gives us a rule that would lead to the editor's not ordering her to reveal. It says, information isn't accurate won't or → order her doesn't concern public safety to reveal We basically want the opposite: if the info is accurate then editor and it does concern safety will order reveal

  3. Correct87% picked this

    If the information concerns safety at the power plant, a judge will order the journalist to

    Why this is right

    We're shopping for answers that allow us to establish that the judge or her editor will order her to reveal the informant's identity. This answer says that info concerns safety → judge will order at power plant her to reveal Cool, well does the informant's info concern safety at the power plant? Yes, we were told it concerns safety violations at the power plant. Thus, according to this answer, the judge will order the journalist to reveal the informant's identity. Thus, according to the 'However' sentence, the journalist will publicly reveal the informant's identity. So this answer guarantees the truth of the conclusion. info is about → judge plant safety orders reveal + Premise judge/editor → journey will orders reveal reveal identity informant's info is about plant safety journey will reveal informant's identity

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

  4. Unrelated to Goal4% picked this

    The truth of the information provided by the informant can be verified only if the informant's

    We're only shopping for answers that allow us to establish that the judge or her editor will order her to reveal the informant's identity. This answer comes nowhere close to that goal.

  5. Unrelated to Goal2% picked this

    The informant understood, at the time the journalist promised him confidentiality, that she would break this promise if ordered to

    We're only shopping for answers that allow us to establish that the judge or her editor will order her to reveal the informant's identity. This answer talks about the informant's awareness of the fact that a judge's order could cause the journalist to leak their identity. But this answer does nothing to establish that the judge or editor will in fact order a reveal of the identity.

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