Suppose that you have the following function definition.

void sum(int x, int y, int& z)

{

z = x + y;

}

Consider the following declarations:

int list1[10], list2[10], list3[10];

int a, b, c;

Which of the following function calls is valid?

a. sum(a, b, c);

b. sum(list1[0], list2[0], a);

c. sum(list1[0], list2[0], list3[0]);

d. sum(list1, list2, list3);

e. sum(list1[0], b, 6);

f. sum(list1, list2, c);

g. for(inti = 1; i <= 10; i++)

sum(list1[i], list2[i], list3[i]);