The diagram of a logic circuit is given below. The output of the circuit is represented by

Explanation

`F=(W+X).(W+Y)`
`= W.W+W.Y+X.W+X.Y= W+W.Y+X.W+X.Y`
` = W(1+Y)+XW+X.Y= W+XW+X.Y`
` = W(1+X)+X.Y=W+X.Y`