A.
#include <stdio.h> main() {/*programming*/ printf('programming!/n')}
B.
#inc lude<stdio.h> main() {/*/programming/*/ printf('programming!/n')}
C.
#include <stdio.h> main() {/*programming*/ printf('programming!/n')}
D.
include<stdio.h> main() {/*/*programming*/*/ printf('programming!/n')}