In the Context of Prenatal Sources of Sexual Orientation,researchers Consider

In the context of prenatal sources of sexual orientation,researchers consider which of the following questions?

A) Is the mother's body is able to produce enough female sex hormones to prevent virilization of a female fetus?
B) Does the mother's first born child have a tendency toward homosexuality?
C) Does the size of the mother's brain match the brain size of most homosexual men?
D) Is the mother's body is able to produce enough male sex hormones to start the process of sexual differentiation in the fetal brain?
E) Is there a correlation between the birth order of siblings and the possibility of being homosexual that runs in the family?