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Must Be True—FL. The correct answer choice is (A)
The preservationist provides the guidelines for determining which of the library’s collection of
medieval manuscripts will be restored to protect against their continual physical deterioration. The
library will restore those manuscripts that are of “widely acknowledged cultural significance” that
are frequently consulted by researchers, but only if the safety of the manuscripts can be guaranteed
during the restoration process. The preservationist also concedes that this policy means that “some
medieval manuscripts whose authenticity is suspect will be restored.”
This is a Must Be True question. Our prephrase is that we can infer from the preservationist’s
concession that it must be the case that some manuscripts whose authenticity is suspect are of widely
acknowledged cultural significance, are frequently consulted by researchers, and can be kept safe
during the restoration process.
Answer choice (A): This is the correct answer choice, and comports with our prephrase as
discussed above. Do not worry that the answer choice does not reference the cultural significance
of the manuscripts or the fact that they can be kept safe during the restoration process. In a Must Be
True question the correct answer choice does not have to provide all of the things that must be true
based on the stimulus, so long as what is included must be true.
Answer choice (B): This answer choice is incorrect because the preservationist did not say that they
would restore all of the medieval manuscripts widely acknowledged to be of cultural significance.
Rather, the stimulus told us that all of those to be restored would be of such significance.
Answer choice (C): As with answer choice (B), all we can say is that all of the manuscripts to be
restored are those whose safety can be ensured during the restoration process.
Answer choice (D): The stimulus did not provide any basis for determining which of the manuscripts
is more susceptible to deterioration. This is a somewhat tempting answer choice because it makes
real-world sense that manuscripts that are frequently consulted by researchers would be at a
heightened risk of deterioration.
Answer choice (E): We cannot say that it must be true that not a single medieval manuscript is both
rarely consulted by researchers and widely acknowledged to be of cultural significance. For example,
there may be a manuscript that is so significant that it has been thoroughly examined in the past and
therefore is no longer directly consulted by researchers.