E() called two time. Each time value of a and b is different. Why? Explain in detail please.

Question

#include <stdio.h>
int a=10,b=20;
int main() {
int a=5,b=6;
C();
a=2,b=3;
E();
printf("\n%d %d",a,b);
return 0;
}
C()
{
int a=23;
printf("\n%d %d",a,b);
D();
a=6;
}
D()
{
int b=44;
E();
printf("\n%d %d",a,b);
}
E(){
printf("\n%d %d",a,b);
a=1,b=2;
}

Answer 1

E use a and b of the global scope, so the first time they have 10 and 20 as their values, then they have 1 and 2 as E set them so that they have those values

Answer 2

Thnk you...