You will be given a definition of a task first, then some input of the task.
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.

The simplest carbohydrates are amino acid
(A) amino acids are proteins
(B)carbohydrates and proteins are Biomolecules
(C)carbohydrates can built muscles
Output:
A