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: Adding something poisonous to an environment and harming it is called what? (A) dirtying (B) liking (C) cleaning (D) observing

Output: A


Input: Consider Input: The last celestial body in our solar system without an orbit is (A) Saturn (B) Jupiter (C) a meteor (D) Uranus

Output: C


Input: Consider Input: An object that is stopped is (A) accelerated (B) halted (C) off-balance. (D) wind-blown


Output: B