In Diagnosing Orgasm Disorder in Women,why Is It Necessary to Determine

In diagnosing orgasm disorder in women,why is it necessary to determine whether the woman "never or almost never" reaches orgasm?

A) because only 50 percent of all women regularly experience orgasm from intercourse
B) because female orgasm difficulties are usually due to an inexperienced partner
C) because it would be a different orgasm disorder if the problem is only occasional
D) because most women regularly experience orgasms from intercourse