If \(x^2 + xy - 32 = 0,\) and \(x\) and \(y\) are integers, then \(y\) could equal each of the following except…?

[Gmat_mission]

If \(x^2 + xy - 32 = 0,\) and \(x\) and \(y\) are integers, then \(y\) could equal each of the following except…?

A) -31
B) -14
C) 2
D) 4
E) 14

Answer: C

Source: EMPOWERgmat