In Regard to the Positive and Negative Symptoms of Schizophrenia

In regard to the positive and negative symptoms of schizophrenia,

A) positive symptoms respond better to antipsychotic drugs compared to negative symptoms.
B) positive symptoms are caused by structural deficits in the brain but negative symptoms are caused by neurotransmitter dysfunction.
C) there are no gender differences in positive and negative symptoms.
D) women are more likely to show both positive and negative symptoms.