(单选题)12: 下列程序的输出结果是_________。&nbsp;#include&nbsp;<iostream>&nbsp;&nbsp;&nbsp;   int min(int a,int B)      {            if(a<b)  return a;   else return B;            return 0;       }       void main()       {           cout<<min(1,min(2,3))<<endl;       }

A: 0

B: 1

C: 2

D: 3

正确答案:♦B♦