Detailed 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.
Q: I use a knife to clean my dog's fur.
(A) Knives are metal and brushes are plastic.
(B)A knife could hurt my dog.
(C)Dogs are afraid of knives.
A:
B