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: Flora requires chlorophyll to (A) moonlight (B) undergo natural development (C) starlight (D) dairy

Output: B


Input: Consider Input: Which of the following items can perform photosynthesis? (A) a flying wasp (B) a speedy cheetah (C) wet dirt (D) a yellow tulip

Output: D


Input: Consider Input: Some minerals originated from a material that was (A) hard (B) clear (C) light (D) far away


Output: D