When the XY genetic code begins to assert itself, A. ovaries begin to differentiate. B. testes begin to differentiate C. estrogen begins to be produced. D. brain development begins to occur more rapidly. I think the answer is C

Answer 1

is it A

Answer 2

I think is B

Answer 3

XY is the male expression. So it is testicles. XX would involve the ovaries for sure. I think both sexes produce some estrogen as well as testosterone.