杜家坪站
罐子岭站
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 杜家坪站 and 罐子岭站 (except for this two stops)? 
A) 23 
B) 1 
C) 15 
D) 16 
