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.

Pencils contain a chocolate core
(A) Chocolate is made from cocoa beans
(B)Chocolate can be many colours
(C)Chocolate is not a good material for use in pencils
C