有以下程序
#include＜stdio.h＞
int f(int n)
int t=0,a=5;
if(n/2)int a=6;t+=a++;
elseint a=7;t+=a++;
return t+a++;

main()
int s=0,i=0;
for(;i＜2;i++)s+=fi);
printf("%d\n",s);

程序运行后的输出结果是______。

A．-3,1,1,3,
B．-12,-3,0,0,
C．0,1,2,3,
D．-3,-3,-3,-3,

A．10,1,8,3,6,5,4,7,2,9,
B．10,9,8,7,6,5,4,3,2,1,
C．2,9,4,7,6,5,8,3,10,1,
D．1,10,3,8,5,6,7,4,9,2,