Answer & explanation
Correct answer: option 2
Output of upper AND gate =$\overline{A}B$
Output of lower AND gate =$\overline{B}A$
Thus, output of OR gate =$\overline{A}B$ + $\overline{B}A$
$\text{This is Boolean expression for XOR gate.}$
Correct answer: option 2
Output of upper AND gate =$\overline{A}B$
Output of lower AND gate =$\overline{B}A$
Thus, output of OR gate =$\overline{A}B$ + $\overline{B}A$
$\text{This is Boolean expression for XOR gate.}$