单项选择题

下列描述中与其它选项不等价的是（）。

A、c = a && b;
B、c[3:0] = a[3:0] & b[3:0];
C、c[0] = a[0] & b[0]; c[1] = a[1] & b[1];c[2] = a[2] & b[2]; c[3] = a[2] & b[3];
D、for(i=0;i<=3;i=i+1) c[i]="a[i]" &>

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