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.

Example Input: Birds can swim.
(A) Birds can't swim, they fly.
(B)Birds enjoy their life flying.
(C)Birds are afraid of swimming.
Example Output: A

Example Input: The troop asked for assistance with their gun
(A) Guns are under strict control in most of the countries
(B)Gun is a weapon, it cannot be used for asking assistance
(C)Guns are usually made from metal
Example Output: B

Example Input: swimming often damages health.
(A) swimming is interesting.
(B)swimming is an sport and keeps people healthy.
(C)it is difficult to give up smoking.
Example Output:
B