单项选择题

有以下程序 struct A {int a;charb[10]; double c;}; void f(structAt); main(){struct A a={1001,"ZhangDa",1098.0}; f(a); printf("%d,%s,%6.1 f\n",a.a,a.b,a.c);} void f(struct A t) {t.a=1002; strcpy(t.b,"ChangRong"); t.c=1202.0;} 程序运行后的输出结果是

A.1002,ChangRong,1202.0
B.1001,ZhangDa,1098.0
C.1001,ChangRong,1098.0
D.1002,ZhangDa,1202.0