单选题 若有以下程序
#include＜stdio.h＞
typedef struct stu{
char name[10],gender;
int score;
}STU;
void f(STU a,STU b)
{ b=a;
printf("%s,%c,%d,",b.name,b.gender,b.score);
{
main()
{ STU a={"Zhao",'m',290},b={"Qian",'f',350};
f(a,b);
printf("%s,%c,%d/n",b.name,b.gender,b.score};
}
则程序的输出结果是______。

• A.Zhao,m,290,Qian,f,350
• B.Zhao,m,290,Zhao,m,290
• C.Qian,f,350,Qian,f,350
• D.Zhao,m,290,Zhao,f,350