If Given the Choice Between Cognitive-Behavioural Therapy (CBT), Cognitive-Behavioural Therapy-Enhanced

If given the choice between cognitive-behavioural therapy (CBT) , cognitive-behavioural therapy-enhanced (CBT-E) , behaviour therapy (BT) , and interpersonal therapy (IPT) for the treatment of bulimia for a friend, which would be the best choice based on current available research?

A) CBT-E is the best choice.
B) IPT is the best choice.
C) IPT or BT are both good choices.
D) CBT or CBT-E are both good choices.