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【单选题】
下列关于体液免疫和细胞免疫的叙述，正确的是（）A.
体液免疫具有特异性，细胞免疫没有特异性
B.
浆细胞和效应T细胞均能产生抗体
C.
在细胞免疫的反应阶段主要进行B细胞的增殖和分化
D.
人体中的特异性免疫是细胞免疫和体液免疫共同完成
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B.
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C.
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D.
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