In the program in Question 1 parameter passing method Pass by Value is used.

a) Write the same program using parameter passing method Pass by Reference so that the new program will displays the same results as in the program in Question 1. (30 points)

b) In the new program explain why the value of x is changed after calling the function? (20 points)

#include

int Func1(int y){

printf("The value of y-2 in the Func1 is %d ", y-2);

return(y-2);

}

int main(void)

{

int x = 12;

printf("Before calling the function the value of x is %d ", x);

x=Func1(x);

printf("After calling the function the value of x is %d ", x);

}