Consider the following program written in C syntax:

void swap (int a, int b) {
int temp;
temp = a;
a = b;
b = temp;
}
void main () {
int value = 2, list [5] = {1, 3, 5, 7, 9};
swap (value, list [0]);
swap (list[0], list[1]);
swap(value, list[value]);

for each of the following parameter-passing methods, what areall of the values of the variables value and list after each of thethree calls to swap?

a. Passed by value
b. Passed by reference
c. Passed by value-result