上沙沟站
火炬广场站
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 上沙沟站 and 火炬广场站 (except for this two stops)? 
A) 2 
B) 18 
C) 13 
D) 14 
