In the Context of Schizophrenia, Which of the Following Statements

In the context of schizophrenia, which of the following statements is true of the findings underlying the dopamine hypothesis?

A) Amphetamines stimulate cortisol release and create hallucinations and delusions of schizophrenia.
B) Early antipsychotic drugs that aided dopamine receptors were effective at treating positive symptoms.
C) Early antipsychotic drugs that block dopamine receptors were not useful at treating positive symptoms.
D) Amphetamines stimulate dopamine release and therefore may mimic the hallucinations and delusions of schizophrenia.