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: The moon's surface (A) features of variety of landscape features (B) is covered completely in water (C) is 100% flat and smooth (D) is 100% covered in asteroid created craters

Output: A


Input: Consider Input: Sunlight is a source of (A) wind energy (B) warmth (C) frigid temperatures (D) moonlight

Output: B


Input: Consider Input: What purpose does a plant light serve? (A) Comfort them (B) Mimic sunlight (C) Keep plants warm (D) Protect from bugs


Output: B