题目：
The nurse is teaching a psychiatric client about her prescribed drugs, chlorpromazine and benztropine. Why is benztropine administered ？（）
A．To reduce psychotic symptoms.
B．To reduce extrapyramidal symptoms.
C．To control nausea and vomiting.
D．To relieve anxiety.
答案：
参考答案：B
解析：
Benztropine is an anticholinergic medication, administered to reduce the extrapyramidal adverse effects of chlorpromazine and other antipsyehotic medications. Benztropine doesn't reduce psychotic symptoms, relieve anxiety, or control nausea and vomiting.
