Logical ReasoningDifficulty: Easy

PT105 S2 Q5 Explanation

Archaeologist: A large corporation

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

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Stimulus

Archaeologist: A large corporation has recently offered to provide funding to restore an archaeological site and to construct facilities to make the site readily accessible to the general public. The restoration will conform to the best current theories about how the site appeared at the height of the ancient however, because many parts of the site contain unexamined evidence.

What this question is testing

Strengthen

Your task

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

Common trap

Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.

Winning move

Locate the gap between evidence and conclusion, then pick the choice that closes 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
5.

Which one of the following principles, if valid, justifies the

Answer choices

  1. Bad Trigger Match2% picked this

    The ownership of archaeological sites should not be under the control

    This rule doesn't clearly apply to our situation, since we were never told that the large corporation would have control over ownership of the site. We were only told that they offered to provide funding to restore the site and open it up to the public (they'll probably just get a shiny plaque in the visitors' center).

  2. Bad Premise/Conclusion Match4% picked this

    Any restoration of an archaeological site should represent only the most ancient period of

    This isn't a rule that provides a way of concluding, - shouldn't take their money - shouldn't restore the site - shouldn't open it up to the public It would only allow us to conclude that a restoration shouldn't represent a certain time period. Also, it sounded like this restoration would be representing the most ancient period of the site's history ("it will conform to the best current theories about how it appeared at the height of the ancient civilization"). Since this answer choice aligns with the pitch for the restoration, it doesn't provide the author with a mechanism to say, "According to this, we shouldn't do this restoration".

  3. Bad Conclusion Match2% picked this

    No one should make judgments about what constitutes the height of

    This is only a rule that would let us scold someone for attempting to decide what the height of a certain civilization was. It doesn't do anything to connect Premise language (whether or not there's unexamined evidence) to Conclusion language (whether or not we should reject the corporation's offer).

  4. Bad Trigger Match2% picked this

    Only those with a true concern for an archaeological site’s history should be involved in the

    This is potentially a rule that allows us to conclude, "Thus the corporation should not be involved in the restoration of the site". But in order to use the rule, we would have to know that the large corporation does not have a true concern for the site's history. Not only did the author never say anything like that as her premise, but we actually have background information that sounds like the large corporation does care (they want to essentially donate money so that the public can behold the best current theories about this ancient civilization).

  5. Correct90% picked this

    The risk of losing evidence relevant to possible future theories should outweigh any advantages of displaying the results

    Why this is right

    This answer has a surprising Weighing Tradeoffs feel, but it is the only answer that uses Premise language (unexamined evidence). We are definitely adding in some common sense to think that this author is worried that we will be risking losing this unexamined evidence if we do the restoration (because it's tainted or walled-off during the restoration / construction process). Since we have a lot to gain from accepting the corporation's offer (yay, we've got money to restore it and let the public come learn about this ancient civilization), if we're arguing that we should reject this offer then we must be assuming that the negatives outweigh the positives. This answer choice establishes that the potential bad outweighs the potential good, which helps us to get closer to that conclusion of "okay, we should reject this offer".

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

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