How many gates would be required to implement the following Boolean expression before simplification? XY + X(X + Z) + Y(X + Z)

How many gates would be required to implement the following Boolean ex

1.	How many gates would be required to implement the following Boolean expression before simplification? XY + X(X + Z) + Y(X + Z)
A.	1
B.	2
C.	4
D.	5
Answer» E.