Q.

Consider the following logic circuit.                                [2025]

The output is Y = 0 when:

1 A = 1 and B = 1  
2 A = 0 and B = 1  
3 A = 1 and B = 0  
4 A = 0 and B = 0  

Ans.

(1)

A B Y
0 0 1
1 0 1
0 1 1
1 1 0