Please use C language

Question 2 What will be the output of this program? #include int abc (int a) int x=10; printf("\t in abc before increasing: %d ", x); x= %d ", x); printf("\t in abc after increasing return x; : x= int main() int x=100; int a-20; a-abc (x) x=abc (a) ; printf ( " in return o; main : a=%d , x=%d ", a, x)