延平门站
西等驾坡站
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 延平门站 and 西等驾坡站 (except for this two stops)? 
A) 33 
B) 27 
C) 30 
D) 20 
