四平路站
虹桥2号航站楼站
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 四平路站 and 虹桥2号航站楼站 (except for this two stops)? 
A) 10 
B) 5 
C) 18 
D) 6 
