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.
Input: Surgery falls back as time passes
(A) Surgery can cure people
(B)Surgery still have lots of unsolved problems
(C)Surgery is developing better and better thanks to the research of human
Output:
C