One of Your Friends Is in Medical School

One of your friends is in medical school.She tells you about a syndrome,where a genetic male produces normal levels of testosterone.However,his body tissues are insensitive to the testosterone and result prenatal development is feminized.After describing the syndrome,your friend forgets its name.You know it and are able to tell her that it is

A) congenital adrenal hyperplasia (CAH) .
B) androgen-insensitivity syndrome (AIS) .
C) cryptorchidism.
D) Klinefelter's syndrome.