单项选择题

下面程序的输出结果是 ______。#include<stdio.h>main(){ char*p[]={"BOOL","OPK","H","SP"}; int i: for(i=3;i>=0;i-,i-) printf("%c",*p[i]); printf("\n");}

A.SO
B.SP
C.SPOPK
D.SHOB