单项选择题

下面程序的输出结果是
#include<iostream.h>
#include<string.h>
void main()
char p1[10],P2[10];
strcpy(p1,"abc");
strcpy(p2,"ABC");
char str[50]="xyz";
strcpy(str+2,strcat(P1,p2));
cout<<six;

A.xyzabcABC
B.zabcABC
C.xyabcABC
D.yzabcABC