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: Which would create the most pollution (A) animals (B) rivers (C) smoke stacks (D) toxicity

Output: C


Input: Consider Input: Drinking cola daily removes layers from the surface of (A) enamel on molars (B) spoons (C) porcelain (D) the coffee pot

Output: A


Input: Consider Input: The worst place to leave a candy bar is (A) refrigerator (B) closet (C) freezer (D) sunlight


Output: D