# GATE | GATE-CS-2006 | Question 2

• Last Updated : 28 Jun, 2021

Let X, Y, Z be sets of sizes x, y and z respectively. Let W = X x Y. Let E be the set of all subsets of W. The number of functions from Z to E is:
(A) z2xy
(B) z x 2 xy
(C) z2x + y
(D) 2xyz