What Do Follow-Up Analyses on an Unusual Study of Two

What do follow-up analyses on an unusual study of two identical twin boys, one of whom experienced a circumcision accident, was subsequently raised as a female, and received appropriate sex-change surgery, reveal?

A) That socialization plays an even greater role in gender-identity formation than was originally assumed
B) That some intersexed children may not be as psychosexually neutral at birth as originally believed.
C) Clear evidence that gender identity is psychologically neutral at birth
D) The efficacy of sex reassignment of children.