北京路站
贵阳火车站
Please solve the multiple choice problem and put your answer (one of ABCD) in one "\boxed{}". According to the subway map, how many intermediate stops are there between 北京路站 and 贵阳火车站 (except for this two stops)? 
A) 20 
B) 3 
C) 8 
D) 22 
