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.

he prints a negative picture as colored by Sack piece.
(A) Sack piece is not a thing to print a picture
(B)Sack piece is in the white color
(C)We can use this sack piece in any places
Output:
A