Which Circumstance Will Be Most Likely to Cause a Genetic

Which circumstance will be most likely to cause a genetic male to develop a mostly feminine anatomy?​

A) exposure to more than the usual amount of estrogen during an early sensitive period
B) ​exposure to more than the usual amount of testosterone during an early sensitive period
C) ​a condition that prevents androgens from exerting their effects
D) excessive levels of alpha-fetoprotein in his blood