Consider 4-variable functions f1, f2, f3, f4 expressed in sum-of-minterms form as given below.
f1 = ∑(0,2,3,5,7,8,11,13)
f2 = ∑(1,3,5,7,11,13, 15)
f3 = ∑(0,1,4,11)
f4 = ∑(0,2,6,13)

With respect to the circuit given above, which of the following options is/are CORRECT? [GATE|| 2024 SET2|| MSQ ||1-mark]
Y= ∑(0,1,2,11,13)
Y= Π (3,4,5,6,7,8,9,10,12,14,15)
Y= ∑(0,1,2,3,4,5,6,7)
Y= Π (8,9,10,11,12,13,14,15)
