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]="1,2,3,4,5"; gets(ss);strcat(ss,"6789");printf("%s\n",ss);}
A.ABC6789
B.ABC67
C.12345ABC6
D.ABC456789