Answer & explanation
Correct answer: option 3
If inputs are A and B then output for NAND gate is $ Y = \bar{AB}$
$ \text{If A =1 , B= 1 Then} Y = \bar{1.1} = \bar 1 = 0$
$\text{In all other cases the output is 1}$
Correct answer: option 3
If inputs are A and B then output for NAND gate is $ Y = \bar{AB}$
$ \text{If A =1 , B= 1 Then} Y = \bar{1.1} = \bar 1 = 0$
$\text{In all other cases the output is 1}$