Which model of psychopathology considers unconscious influences to be the motivation for behavior?
a. humanistic
b. psychodynamic
c. cognitive
d. existential?

The answer is B, Psychodynamic.

The Psychodynamic model of Sigmund Freud is largely based on his psychoanalytic theory that our mind is divided into three parts: id, ego, and superego, or the unconscious, conscious, and subconscious. The model suggests that our behavior and mental health are affected by the experiences and relationships we had during our childhood.  It emphasizes the conflict between our conscious and unconscious.  This psychological forces, which we are not aware of, can lead to abnormal behaviors when we became adults.