A.
#include int main() { /* programming */ printf("programming ! \n"); return 0; }
B.
#include int main() { /*/* programming */*/ printf("programming ! \n") ; return 0; }
C.
include int main() { /* programming */ printf("programming ! \n") ; return 0; }
D.
#include int main() ; { /*/ programming /*/ printf("programming ! \n") ; return 0; }