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.

Learning a language is easy
(A) Cycling and learning a language are good for the brain
(B)Cycling can be said in different ways depending on the language
(C)Languages are very difficult to muster, especially when you are old
C