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【单选题】
已知用8选1数据选择器74LS151构成的逻辑电路如图所示,则电路实现的逻辑功能是: 。A.
一个“检1”电路，即输入（DCBA）中包含奇数个‘1’时，输出为‘1’
B.
一个四变量与或电路
C.
一个“检1”电路，即输入（DCBA）中包含偶数个‘1’时，输出为‘1’
D.
一个四变量同或电路，Y=A⊙B⊙C⊙D
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