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: Which would likely decrease the food in an environment? (A) gravity (B) water evaporation (C) a tree (D) time
Example Output: B

Example Input: oceans contains most of earth 's (A) wet sustenance (B) trees (C) clouds (D) shoes
Example Output:
A