The following circuit implements a two-input AND gate using two 2-1…

GATE · 2007 · IT

The following circuit implements a two-input AND gate using two 2-1 multiplexers. What are the values of X1, X2, X3 ?

1. A.

   X1=b, X2=0, X3=a

2. B.

   X1=b, X2=1, X3=b

3. C.

   X1=a, X2=b, X3=1

4. D.

   X1=a, X2=0, X3=b

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