有以下程序(strcpy为字符串复制函数，strcat为字符串连接函数)#include#includemain(){ char a[10] = "abc", b[10] = "012", c[10] = "xyz";strcpy(a + 1, b + 2);puts(strcat(a, c + 1));}程序运行后的输出结果是

A．a12xyz

B．12xyz

C．a2yz

D．bc2yz