For Most Severe Mental Disorders,such as Bipolar Disorder and Schizophrenia,research

For most severe mental disorders,such as bipolar disorder and schizophrenia,research has found that adding psychotherapeutic treatments such as social skills training or cognitive behavioral therapy to medication:

A) reduces the effectiveness of treatment compared with medication alone.
B) increases the effectiveness of treatment compared with medication alone.
C) does not alter treatment effectiveness,and patients report that the psychotherapy is largely a waste of time.
D) does not alter treatment effectiveness,but patients report liking the treatment with psychotherapy more than medication alone.