This is just a general must be true question. Think about the three scenarios.
A doesn’t have to be true in the second scenario: V is on the second shelf and the monographs are elsewhere.
B doesn’t have to be true. In two of our scenarios the second shelf has a monograph.
C doesn’t have to be true: in the third scenario Vonnegut (and no monographs) are on the third shelf.
D is CORRECT. Why? Lack of space elsewhere. After we place P, S and V, we only have three open spaces to place F, H (two grammars) and W (a novel).
One possibility is that F goes with V in scenario 2, in which case the only space left for F and H is the third shelf.
The other major possibility is that F goes with either W or V on the third shelf.
In both cases at least one novel and grammar are on the third shelf.
E is wrong because in scenario 3 there is no linguistics monograph on the third shelf.
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