当执行下面的程序时,如果输入ABC,则输出结果是______。#include "stdio.h"#include "string.h"Main(){ char ss[10]="12345";Gets(ss); strcat(ss,"6789");Printf("%s\n",ss);}
A.ABC6789
B.ABC67
C.12345ABC6
D.ABC456789
正确答案是A