Again, this problem is looking for a yes or no answer. Statement (1) doesn’t tell us anything
about the May price, so it is not sufficient. We can cross off A and D.
Statement (2) doesn’t tell us anything about March, so it is not sufficient and we can cross off B.
With both statements together, we know relative prices, and no matter what numbers we were to
assume, the May price ends up slightly higher than the March price. So the answer is definitely
no, meaning that both statements together are sufficient, and the answer is C.