Qu stions 18, 19 and 20 are depend on the below program 3 of 4 #include void a0 int i 743 printf" In a, i %dn", i); void b0 intj printf("In b, J-%din'', j); int main0\ a) b0; return 0; 18) The scope of variable i is a. Local b. Global c. Inside the program 19) The scope of variable j is_. a. Local b. Global c. Inside the program 20) What are the scope of functions a) and b)? a. Local b. Global c. Inside the program