DSM-5 classifies the persistent or recurrent inability to reach or sustain an erection until completion of sexual activity as

A) failure to ejaculate.
B) hypoactive sexual disorder.
C) male orgasmic disorder.
D) impotence.
E) male erectile disorder.

The persistent or recurrent inability to reach or sustain an erection until completion of sexual activity is classified as male erectile disorder in DSM-5. Failure to ejaculate (A) and male orgasmic disorder (C) refer to problems with ejaculation, while hypoactive sexual disorder (B) refers to a lack of sexual interest or desire. Impotence (D) is sometimes used as a colloquial term for erectile dysfunction, but it is not a clinical term used in DSM-5.