Which Statement Best Summarizes the Research on the Effectiveness of Psychotherapy

Which statement best summarizes the research on the effectiveness of psychotherapy?

A) Behavioral therapy is more effective than psychoanalytic therapy in all cases.
B) There are no significant differences in outcomes (e.g., levels of depression) between those who have undergone psychotherapy and those who have not.
C) Psychoanalytic therapy is best for treating people with long-standing personality disorders.
D) There are no significant differences in the overall effectiveness of behavior therapy, humanistic therapy, and psychoanalytic therapy.