Which Categorical Proposition Is Logically Equivalent to This Hypothetical Proposition

Multiple Choice

Which categorical proposition is logically equivalent to this hypothetical proposition? If p, then not q.

A) Some cases in which q is true are cases in which p is true.
B) All cases in which p is true are cases in which q is true.
C) No case in which p is true is a case in which q is true.
D) All cases in which q is true are cases in which p is true.
E) Some cases in which p is true are cases in which q is not true.