以下四个程序中，完全正确的是（）
A.#includemain();
{/*programming*/
printf("programming!\n");}
B.#includemain()
{/*/programming/*/printf("programming\n");}
C.#includemain()
{/*/*programming*/*/printf("programming!\n");}
D.includemain()
{/*programming*/
printf("programming!\n");}