This is a brief C exercise. (The labs will require comfort and fluency in C.) Below is a snippet of code: void op1(int a, int b) { a = a + b; } void op2(int* a, int* b) { *a = *a + *b; } int main() { int a = 1, b = 1, C = 1, d = 1; op1(a, b); op2(&c, &d); return 0; } What are the values of a, b, c, and d right before the program exits? Since the purpose of this exercise is to build your skills, you should do this problem without compiling and running the program