Which of the Following Statements Is True of Drug Treatments

Which of the following statements is true of drug treatments for depression?

A) Drugs have fast emerging effects on intracellular processes in the neurotransmitter systems.
B) Medications appear to work better for treating mild-to-moderate depression rather than severe and chronic depression.
C) Discontinuing antidepressant use during the first 6 to 9 months after symptoms subside seems to double the risk of relapse in severe depression.
D) All of the different antidepressant drugs currently available reduce depression in only about 15 to 20 percent of the people who take them.