In the following program where is the variable a getting defined and where it is getting declared? #include int main() { extern int a; printf("%d\n", a); return 0; } int a=20;

In the following program where is the variable a getting defined and where it is getting declared?

#include<stdio.h>
int main()
{
    extern int a;
    printf("%d\n", a);
    return 0;
}
int a=20;

[A].	extern int a is declaration, int a = 20 is the definition
[B].	int a = 20 is declaration, extern int a is the definition
[C].	int a = 20 is definition, a is not defined
[D].	a is declared, a is not defined

Answer: Option A

Explanation:

- During declaration we tell the datatype of the Variable.

- During definition the value is initialized.