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.
Q: Sam's hair gradually turns green as he gets older
(A) green hair seems cool and special
(B)Sam loves green color so his hair turns green
(C)man's hair can't turn green naturally
A:
C