The Cause of the Defect Called Congenital Adrenal Hyperplasia (CAH)

The cause of the defect called congenital adrenal hyperplasia (CAH) is known to be

A) genetic factors that cause the production of high levels of androgen.
B) experiential; mother did cross-gendered activities during her pregnancy.
C) prenatal; the boy's penis was injured by maternal motions prior to birth.
D) dietary; the mother ate too much oat cereal during pregnancy.