Answer & explanation
Correct answer: option 4
$\text{Output from the first gate i.e OR gate is } \bar{X} + \bar{Y}$
$\text{Input for second gate i.e AND gate is }\bar{X} + \bar{Y} \text{ and Z }$
$\text {Final Output is } (\bar{X} + \bar{Y}).Z$
Correct answer: option 4
$\text{Output from the first gate i.e OR gate is } \bar{X} + \bar{Y}$
$\text{Input for second gate i.e AND gate is }\bar{X} + \bar{Y} \text{ and Z }$
$\text {Final Output is } (\bar{X} + \bar{Y}).Z$