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: An example of replacing a natural resource like copper might be (A) recovering ores (B) running around (C) throwing up (D) using plastic straws

Output: A


Input: Consider Input: Greenhouses are great for plants like (A) Pizza (B) Lollipops (C) Candles (D) French beans

Output: D


Input: Consider Input: Dinosaur carcasses are a form of (A) car parts (B) fuel (C) fun (D) food


Output: B