149 St-Grand Concourse Station
Baychester Av Station
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 149 St-Grand Concourse Station and Baychester Av Station (except for this two stops)? 
A) 30 
B) 23 
C) 6 
D) 12 
