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: Mating is generally preceded by courtship., Fact2: For example, a black rooster and a white hen mate, and the resulting offspring are gray., Question: What can result in offspring? (A) seeds (B) competition (C) courtship (D) travel (E) resistance (F) solitude (G) litter (H) reading
Example Output: C

Example Input: Fact1: Air pollution harms the respiratory and circulatory systems., Fact2: Cars are a significant source of air pollution., Question: What harms the respiratory and circulatory systems? (A) oil (B) rain (C) sulfur (D) cars (E) tires (F) coal (G) tar (H) bicycles
Example Output: D

Example Input: Fact1: insect bites cause harm to living things, Fact2: Pesticides kill insects and disease pathogens., Question: Living things can be protected by (A) foolish behavior (B) exoskeleton (C) shells (D) Quasars (E) coral reefs (F) malnutrition (G) layers of fat (H) pesticides
Example Output:
H