The correct answer is E. All of the above. 

Psychotherapeutic Interventions for Depression: Which Work Best?

The American Psychological Association (Society for Clinical Psychology Division 12 of the APA)

 describes cognitive therapy (CT), behavioral activation, interpersonal psychotherapy, and problem-solving therapy have strong evidence of effectiveness in the treatment of major depressive disorder.

1. Society of Clinical Psychology. Psychological treatments. 

https://www.div12.org/diagnosis/depression

Major Depressive Disorder

Which treatments have demonstrated strong evidence of effectiveness in the treatment of major depressive disorder?