All of the Following Statements Are True About Electroconvulsive Therapy

All of the following statements are true about electroconvulsive therapy (ECT)

A) electric shock is administered directly to the brain for less than a second.
B) though there are serious side effects, ECT is highly effective and the relapse rate is very low after treatment.
C) for severely depressed patients with psychotic features, approximately 25 percent of those not responding to medication will benefit.
D) ECT treatments are administered every day for a total of 6 to 10 treatments.