Masters and Johnson's Efforts to "Reverse" Clients' Gay Male or Lesbian

Masters and Johnson's efforts to "reverse" clients' gay male or lesbian sexual orientation succeeded for all of the following reasons, EXCEPT

A) all of the participants were highly motivated to switch their sexual orientation.
B) most of the participants were better categorized as bisexual.
C) more than half of the participants were married.
D) most of the participants had religious beliefs that made it necessary to change their orientation.