单项选择题

以下程序输出的结果为 ______。
main()
char*alpha[6]="ABCD","EFGH","IJKL","MNOP","QRST","UVWX";
char**p;
int i;
p=alpha;
for(i=0;i<4;i++)
printf("%s",p[i]);

A.ABCDEFGHIJKL
B.ABCD
C.ABCDEFGHIJKLMNOP
D.AEIM