In the embryonic differentiation of a normal male
A. Mullerian inhibiting substance is absent.
B. the Wolffian ducts regress.
C. testosterone directly stimulates development of the epididymis, vas deferens, and seminal vesicles.
D. undifferentiated gonads develop into testes during the fifth week of embryonic life.
E. testosterone directly stimulates development of the penis and scrotum.
Answer: C
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