One Reason That Different Diagnostic Criteria Are Used for Males

One reason that different diagnostic criteria are used for males and females with inhibited orgasm disorder is

A) that the disorder is relatively rare in men.
B) that only about 20% of women regularly experience orgasm from intercourse.
C) both are reasons: that the disorder is relatively rare in men, and that only about 20% of women regularly experience orgasm from intercourse.
D) None of these are correct.