After a Careful Analysis of the Early Development of the Sexual

After a careful analysis of the early development of the sexual organs of the female and male fetuses,one of the most important conclusions that we can reach is

A) that there are tremendous differences between the sexual development of female and male sex organs.
B) that there are tremendous similarities between the sexual development of female and male sex organs.
C) that it is impossible to state explicitly anything generalizable for both sexes in their sexual development
D) gender is clear at week 4.