下面程序的运行结果是[填空1]
  #include
  main()
 {int a,s,n,count;
  a=2;
  s=0;
  n=1;
  count=1;
  while(count<=7)
  {n=n*a;
   s=s+n;
   count＝count+1;}
  printf("s=%d",s);
 

A．very much greater than; very much greater than
B．very much less than; very much greater than
C．very much greater than; very much less than
D．very much less than; very much less than