Ralph Is a Bright Student but He Procrastinates

Ralph is a bright student but he procrastinates. He postpones writing term papers and gets incomplete grades from his teachers that eventually become F's. After exploring his early childhood memories with a therapist for almost a year, Ralph comes to the insight that he procrastinates as a way of expressing anger toward his parents. The treatment method used to help Ralph deal with his problem is most likely:

A) psychodynamic therapy.
B) behavior therapy.
C) cognitive therapy.
D) humanist therapy.