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: an animal usually requires a warm body temperature for survival, Fact2: Mammals are also warm-blooded and are covered with hair or fur., Question: What helps maintain body temperature? (A) hats (B) Lift (C) the inside of a refrigerator (D) fur (E) skin (F) arctic winds (G) freezing water (H) hair
Example Output: D

Example Input: Fact1: Sweat wets the skin, and when it evaporates, it cools the body., Fact2: Evaporation is when a liquid turns into a gas., Question: Sweat cools the body when it (A) Movement of an air mass (B) dry conditions (C) heat produced (D) Decreased precipitation (E) hydration (F) It expands (G) the environment (H) turns into a gas
Example Output: H

Example Input: Fact1: Population size influences the chances of a species surviving., Fact2: All humans are the same species., Question: what's survival is influenced by population size? (A) chickens (B) fur seals (C) density (D) gravity (E) humans (F) ducks (G) animals (H) clouds
Example Output:
E