Instructions: In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Input: Fact1: Sponges are a source of food for many species of fish., Fact2: Like sponges, they are attached to the ocean floor., Question: What organisms are a source of food for many species of fish? (A) remains of prehistoric life (B) whales (C) organic matter (D) sharks (E) gastropod shells (F) those on the ocean floor (G) Something made from fermented ricce (H) humans
Output:
F