北山公园站
阿尔山路站
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 北山公园站 and 阿尔山路站 (except for this two stops)? 
A) 12 
B) 0 
C) 19 
D) 1 
