单项选择题

有以下程序: #include struct STU { int num; float TotalScore; }; void f(struct STU p) {struct STU s[2]={{20044,550},{20045,537}}; p.num=s[1].num; p.TotalScore=s[1].TotalScore; } main() { struct STU s[2]= {{20041,703},{20042,580}}; f(s[0]); printf("%d %3.0f\n",s[0].num,s[0].TotalScore); } 程序运行后的输出结果是______。

A.20045 537
B.20044 550
C.20042 580
D.20041 703