橘子洲站
长沙大道站
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 橘子洲站 and 长沙大道站 (except for this two stops)? 
A) 4 
B) 20 
C) 9 
D) 18 
