Definition: 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: rainbow usually appears after sand storm
(A) rainbow has nothing to do with sand storm
(B)sand storm is a kind of natural catastrophe
(C)we can see rainbow in seven different colors
Output:
A