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").

Example Input: Dead organisms are the source of what for decomposers? (A) nutriment (B) pride (C) oceans (D) people
Example Output: A

Example Input: Butterflies will often times have coloring that at look like eyes on their wings for (A) to look pretty (B) fun (C) to see flowers (D) protection
Example Output: D

Example Input: Which relationship is most true? (A) hawks EAT lizards EAT beetles EAT grass (B) hawks EAT bears EAT beetles EAT dogs (C) hawks EAT cats EAT beetles EAT air (D) bears EAT lizards EAT horses EAT grass
Example Output:
A