Regarding the Effectiveness of Psychotherapy, Which of the Following Statements

Regarding the effectiveness of psychotherapy, which of the following statements is FALSE?

A) While the majority of people benefit from therapy, some may deteriorate.
B) Meta-analysis is a statistical technique used to average the results across a large number of studies, and this technique has been used to evaluate the effectiveness of therapy.
C) The greatest improvements in therapy are typically gained during the last few months of treatment.
D) Research supports the overall effectivness of psychotherapy, marital therapy, group therapy, and family therapy.
E) The average therapy client achieves greater improvement than the majority of people assigned to untreated control groups.