Testosterone Secreted from Embryonic Tissues Drives Male Development, but Estrogen

Testosterone secreted from embryonic tissues drives male development, but estrogen secreted from embryonic tissues does not drive female development. This is because

A) embryos lack receptors for estrogen.
B) estrogen works only in the presence of testosterone.
C) estrogen activates androgen receptors.
D) both male and female embryos are exposed to estrogen from the mother.
E) androgens, such as testosterone, are the main drivers of female development.