Void f(int i, int &k) {i = 1;k = 2; } Suppose that a main program has two integer variables x and y, which are given the value 0. Then the main program calls f(x,y); What are the values of x and y?

(A) Both x and y are still 0
(B) x is now 1, but y is still 0
(C) x is still 0, but y is now 2
(D) x is now 1, and y is now 2