将军衙署站
白塔西站
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 将军衙署站 and 白塔西站 (except for this two stops)? 
A) 8 
B) 13 
C) 16 
D) 15 
