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: telephones are used for communication by two people by transmitting sound, Fact2: And the sound of their voice becomes important as well., Question: What is transmitted with telephones? (A) voice (B) copper (C) waves (D) smell (E) cancer (F) energy (G) HIV (H) power
Example Output: A

Example Input: Fact1: natural disasters can cause animals to leave an environment, Fact2: Animal migration is mystery of nature., Question: Natural disasters can cause  (A) deforestation (B) kill them (C) Pollution (D) disease (E) deadly (F) erosion (G) migration (H) flooding
Example Output: G

Example Input: Fact1: riding a bike does not cause pollution, Fact2: Visual pollution caused by littering is pollution, just as is water pollution and air pollution., Question: What is not caused by riding a bike? (A) momentum (B) flooding (C) coal (D) disease (E) speed (F) Allergies (G) litter (H) exercise
Example Output:
G