The right answer is D.Premise: Some critics claim that it is unfair that so many great works of art are housed in huge metropolitan museums, since the populations served by these museums already have access to a wide variety of important artwork.
Counter-premise: The limited number of masterpieces makes a wider distribution of them impractical. Besides, if a masterpiece is to be fully appreciated, it must be seen alongside other works that provide a social and historical context for it.
Conclusion: This criticism is in principle unwarranted.
Per the argument above, some critics claim that the placement of many great works of art in huge metropolitan museums is unfair on the basis that the audience of these museums already has access to a variety of important artwork. But the author says that this criticism is unwarranted. Why? The number of great works of art are limited, thereby making their wider circulation impractical. The author proceeds further by providing a justification as to why the placement of the artworks in the metropolitan museums.
We are to determine which answer choice, if established, could most logically serve as the principle appealed to in the argument countering the critics’ claim.
Option D states that for it to be reasonable to criticize an arrangement as unfair, there must be a more equitable arrangement that is practically attainable. This is the right answer. The author basically rejects the criticism of the critics that the placement of the masterpieces in Metropolitan museums is unfair because in his/her view, there is no better alternative to the current placement. The limited number of artworks means they cannot be widely circulated and the artworks would derive better value if they are placed beside other works that provide historical and social context to them.
(A) In providing facilities to the public, the goal should be to ensure that as many as possible of those people who could benefit from the facilities are able to do so.
This is not correct because the argument made by the author does not proceed in the manner stated in A. At best, A seems to somehow strengthen the position of the critics.
(B) In providing facilities to the public, the goal should be to ensure that the greatest possible number of people gain the greatest benefit possible from them.
B is incorrect for the same reason as A is incorrect.
(C) It is unreasonable to enforce a redistribution of social goods that involves depriving some members of society of these goods in order to supply others.
This does not in anyway mimic the principle applied by the author to counter the argument made by the critics.
(E) A work of art should be displayed in conditions resembling as closely as possible those in which the work was originally intended to be displayed.
E resembles the second premise provided by the author to justify the placement of the artworks in Metropolitan Museums, but this is not the main criticism provided to counter the argument made by the critics. E is therefore not the right answer.