沙湾公园站
芙蓉广场站
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 沙湾公园站 and 芙蓉广场站 (except for this two stops)? 
A) 7 
B) 18 
C) 20 
D) 2 
