单项选择题

以下程序的结果是
  #include<iostream.h>
  void main( )
   char * p="abcdefgh",* r;
   long * q;
   q=(long * )p;
   q++;
   r=(char * )q;
   cout < < r < < end1;

A.defg
B.cdef
C.ghab
D.efgh