市第三医院站
木塔寺西站
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 市第三医院站 and 木塔寺西站 (except for this two stops)? 
A) 19 
B) 18 
C) 2 
D) 12 
