单项选择题

下列程序的运行结果是
  #inClude<iostream.h>
  roid fun(int *a,int * b)
   int * k;
   k=a;a=b;b=k;
  void main( )
   int a=2004,b=9,* x=&a,* y=&b;
   fun(x,y);
   cout < < a < <" " < < b < < end1;

A.2004 9
B.9 2004
C.0 0
D.编译时出错