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: River is flowing still while there is no water.
(A) While rivers are flowing enough it is difficult to empty out the water.
(B)While rivers are flowing along the path, it was difficult to dig to get the water out
(C)While there is no water, a river cannot flow
Output:
C