三十埠东站
振兴路站
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 三十埠东站 and 振兴路站 (except for this two stops)? 
A) 12 
B) 20 
C) 33 
D) 8 
