单项选择题

下列程序的输出结果是
  class Father
  int m.n;
  Father(int a,int B)
   m=a;
   n=b
  
  void show ( )
  System.out.println("m and n:"+m+" "+n);
  
  
  class Son extends Father
  int p;
  Son (int a,int b,int C)
   super(a,B) ;
   p=c;
  
  void show()supur.show( );
  System.out.println("p:"+p);
  
  
  class Test
  public static void main (String args[ ])
   Son s:new Son(6,7,8);
   s.show( );
  
  

A.m and n:6 8

  p:7
B.m andn:6 7

  p:8
C.m and n:7 8

  p:6
D.m and n:8 7

  p:6