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: _____ tide is a stage in the tide cycle process that surfers like the best (A) low (B) mud (C) high (D) earthy
Example Output: C

Example Input: An object converts electrical energy into sound on a (A) iphone (B) soft carpet (C) outside wall (D) wooden table
Example Output: A

Example Input: What sort of habitat would living things live in? (A) A habitat with plenty of water (B) A habitat with varying weather (C) A habitat that most animals choose (D) A habitat with many toys
Example Output:
A