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: Which are in opposition for similar chow? (A) cats and mice (B) dogs and sycamores (C) bears and salmon (D) lions and hyenas
Example Output: D

Example Input: A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade
Example Output: C

Example Input: Kelp has to have provisions to (A) maintain life (B) die (C) hibernate (D) relocate
Example Output:
A