One the most common biological contributors to sexual dysfunction is

A) gastroenteritis.
B) diabetes.
C) hypertension.
D) multiple sclerosis.

Diabetes can damage blood vessels and nerves that are important for sexual function, leading to problems with arousal and orgasm. Gastroenteritis, hypertension, and multiple sclerosis may have other negative effects on sexual function, but they are less commonly associated with sexual dysfunction compared to diabetes.