We can use the three scenarios to figure out this question. The main deduction is that P, S and V all have to be on separate shelves.
A is CORRECT. If a grammar were on the first shelf then we can’t keep P, S and V separate.
B could be true in the first scenario.
C could be true in the first scenario.
D could be true in the third scenario.
E could be true in the first scenario.
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