Consider the logic circuit as shown in the figure below, the function f1, f2 and f (in canonical sum of products form in decimal notation) aref1(w, x, y, x ) = ∑ (8, 9, 10)f2 (w, x, y, x ) = ∑ (7, 8, 12, 13, 14, 15)f(w, x, y, x ) = ∑ (8, 9)The function f3 is

Consider the logic circuit as shown in the figure below, the function

1.	Consider the logic circuit as shown in the figure below, the function f1, f2 and f (in canonical sum of products form in decimal notation) aref1(w, x, y, x ) = ∑ (8, 9, 10)f2 (w, x, y, x ) = ∑ (7, 8, 12, 13, 14, 15)f(w, x, y, x ) = ∑ (8, 9)The function f3 is
A.	∑ (9, 10)
B.	∑ (9)
C.	∑ (1, 8, 9)
D.	∑ (8, 10, 18)
Answer» C. ∑ (1, 8, 9)