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: What impacts an objects ability to reflect light? (A) color pallete (B) weights (C) height (D) smell

Output: A


Input: Consider Input: When a plant is water the liquid goes from the soil area to where it is needed using what system? (A) xylem (B) flowering pistols (C) sprinkler (D) leaves


Output: A