Keith Is Diagnosed with Transsexualism (Gender Dysphoria)

Keith is diagnosed with transsexualism (gender dysphoria) . How is the therapist likely to explain his disorder?

A) "You cross-dress because it allows you to experience sexual arousal."
B) "As a child, you over-identified with your strong and independent father."
C) "We will probably find that your mother encouraged you to dress up like a girl and may have punished him for being aggressive."
D) "Your parents must have discouraged your development of autonomy."