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: recycling has a positive impact on the environment, Fact2: Newsprint is recycled into new paper, cardboard, and insulating material., Question: Making cardboard from what has a positive impact on the environment? (A) newsprint (B) bamboo (C) animals (D) heat energy (E) earth (F) less water (G) sunlight (H) an object
Example Output: A

Example Input: Fact1: Some parasites kill their host, but most do not., Fact2: Parasites include lungworms and GI parasites., Question: What can kill their host? (A) cigarettes (B) bacteria (C) adding heat (D) heat or cold (E) burning (F) Dehydration (G) lungworms (H) Pollution
Example Output: G

Example Input: Fact1: some animals' fur grows thicker for staying warm in the winter, Fact2: Mammals are animals that are born with fur or hair., Question: What are born with fur that grows thicker for warmth in winter? (A) bullfrogs (B) insects (C) birds (D) monotremes (E) turtles (F) mammals (G) pigeons (H) Echinoids
Example Output:
F