If \(M\) and \(N\) are non-zero integers and \(M > N,\) then which of the following is not necessarily greater than

[Vincen]

If \(M\) and \(N\) are non-zero integers and \(M > N,\) then which of the following is not necessarily greater than \(0?\)

A. \(M - N\)
B. \((M - N)^2\)
C. \((M - N)^3\)
D. \(M^2 - N^2\)
E. \(M^3 - N^3\)

Answer: D

Source: EMPOWERgmat