A Behavioral Therapist Is Explaining the Cause of Prolonged Depression

A behavioral therapist is explaining the cause of prolonged depression in a client. He is most likely to suggest that his client's state of sadness might be lingering because the individual

A) has not had enough positive reinforcement and has become sad and withdrawn.
B) was especially dependent during childhood.
C) has a maladaptive explanatory style.
D) expresses self-criticism and guilt.