The Adulthood Psychological Adjustment Achieved by Bruce-Brenda-David, the Male Twin

The adulthood psychological adjustment achieved by Bruce-Brenda-David, the male twin whose penis was ablated during a botched circumcision procedure at age 7 months, suggests that

A) nature's impulse is to create a female.
B) sexual identity may not be easily shifted by the upbringing of a child.
C) regular injections of testosterone can shift sexual identity.
D) genetic type is less important than are social factors.
E) normal circumcision can alter sexual identity.