For how many unique coordinate points (P, Q), such that P and Q are integers, is it true that P^2-Q^2=1155?

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Magoosh

For how many unique coordinate points (P, Q), such that P and Q are integers, is it true that P^2 - Q^2 = 1155?

A. 16
B. 24
C. 32
D. 48
E. 64

OA C