Instructions: In this task, you are given an impractical statement. You are also given three reasons (associated with "A", "B", "C") explaining why this statement doesn't make sense. You must choose the most corresponding reason explaining why this statement doesn't make sense.
Input: The subway is slower than the bus
(A) Metro and bus run on different tracks on different tracks and at different speeds
(B)The speed of the subway is not limited by the traffic flow faster than the bus
(C)Metro and bus bring great convenience to people in the city bus system
Output:
B