Which One of the Following Statements About Gender Determination Is

Which one of the following statements about gender determination is TRUE?

A) The male gender is determined by the presence of only one X chromosome.
B) The male gender is determined by the presence of a Y chromosome.
C) The hormones estrogen and progesterone are key players in the development of internal and external female genitalia.
D) The development of male genitalia is the "default" condition in the absence of estrogen.
E) The development of female genitalia is activated by the presence of anti-Mullerian hormone.