The Idea That Femaleness Is Simply What Happens When an Embryo

The idea that femaleness is simply what happens when an embryo does not develop as a male is no longer supported by evidence because of the discovery of

A) the SRY gene in females.
B) genes whose expression is necessary for female structures to develop.
C) gene that suppress all of the genes on a female's Y chromosome.
D) feminism.
E) genes that suppress expression of SRY in females.