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").

Example Input: Fact1: fat is used to keep animals warm, Fact2: Humans are a new type of animal., Question: what uses fat to keep warm? (A) Lobsters (B) bacon (C) humans (D) pigeons (E) insects (F) omnivores (G) plants (H) bears
Example Output: C

Example Input: Fact1: All life relies on a relatively narrow range of pH, or acidity., Fact2: Human life is dependent life., Question: what relies on a relatively narrow range of acidity? (A) gravity (B) mammals (C) animals (D) trees (E) humans (F) density (G) volume (H) potatoes
Example Output: E

Example Input: Fact1: magnetism can cause objects to repel each other, Fact2: Like magnet poles push away or repel each other., Question: What can cause objects to push away each other? (A) work (B) mines (C) potential energy (D) heat energy (E) magnetism (F) electrically (G) friction (H) gravity
Example Output:
E