In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

Input: Consider Input: As a soccer ball goes flying through the air, the person watching it knows that the reason is because (A) everything is aerial (B) exerting occurred (C) balls are birds (D) soccer takes wing

Output: B


Input: Consider Input: How long does it take Earth to fully revolve one time (A) 28 hours (B) 46 hours (C) 1400 minutes (D) 1440 minutes

Output: D


Input: Consider Input: A reflector is used to reflect (A) dirt (B) sunbeams (C) cosmic dust (D) solar heat


Output: B