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 shows that as the size of a flower increases , the number of pollinators it will attract increases? (A) butterflies blend in with flowers where they exist (B) ducks prefer to sleep in water that has flowering water lilies (C) people prefer to walk through gardens that have a large number of flowering plants (D) planting flowering plants causes bees to gather en masse

Output: D


Input: Consider Input: What uses eyes to see by sensing light? (A) trees (B) algae (C) worms (D) elephants

Output: D


Input: Consider Input: Producers provide an ecosystem with (A) glucose (B) carbon dioxide (C) water (D) glucosamine


Output: A