Which of the Following Is a True Statement

Multiple Choice

Which of the following is a true statement?

A) Amphetamines can cause behavior in normal people that mimics generalized anxiety disorder.
B) Some positive symptoms of schizophrenia are associated with decreased dopamine activity.
C) Phenothiazines inhibit schizophrenic behavior patterns.
D) Autopsies on the brains of schizophrenics show decreased numbers of dopamine receptor sites in certain parts of the brain.