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: What is an example of protecting the environment? (A) flushing the toilet twice (B) using water flow limiter (C) driving shorter trips more often (D) using fancy, more expensive paper

Output: B


Input: Consider Input: Pulse accelerates (A) when cooling down after a work out (B) when running pace increases (C) when running pace slows (D) when entering into a sleep state

Output: B


Input: Consider Input: Without the sun providing warmth and light, life on Earth would (A) nothing (B) flying (C) an impossibility (D) Mars


Output: C