What does the following program print?

#include<stdio.h> void f(int *p, int *q) {   p = q;  *p = 2; } int i = 0, j = 1; int main() {   f(&i, &j);   printf("%d %d \n", i, j);   getchar();   return 0; }

(A) 2 2
(B) 2 1
(C) 0 1
(D) 0 2

Answer (D)
See below f() with comments for explanation.

/* p points to i and q points to j */ void f(int *p, int *q) {   p = q;    /* p also points to j now */  *p = 2;   /* Value of j is changed to 2 now */ }