1. 

What will be the output of the program ? 

#include<stdio.h>
int *check(static int, static int);

int main()
{
    int *c;
    c = check(10, 20);
    printf("%d\n", c);
    return 0;
}
int *check(static int i, static int j)
{
    int *p, *q;
    p = &i;
    q = &j;
    if(i >= 45)
        return (p);
    else
        return (q);
}


A. 10
B. 20
C. Error: Non portable pointer conversion
D. Error: cannot use static for function parameters

Answer: Option D

Explanation:

Static variables are declared in a function so that other functions which access it from its local function cannot change the value. Only the local function can change its value. That's why its not used in function arguments.