A Couple Who Have Three Daughters Would Like to Add

A couple who have three daughters would like to add a son to their family, and they have recently learned that the woman is pregnant. Which of the following phenomena would most likely be associated with the woman's eventual delivery of a healthy son?

A) The production of dihydrotestosterone (DHT) by the embryo and DHT's differentiation into testosterone
B) Development of testes under the influence of the X chromosome
C) Suppression of female reproductive structures by anti-Müllerian hormone (AMH)
D) Atrophy of the Wolffian ducts during embryonic development