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: a compass is used to navigate oceans, Fact2: And to the east is the Atlantic Ocean., Question: what is a compass used to navigate? (A) density (B) lamphreys (C) marine (D) outer space (E) their speed (F) Antarctica (G) non-magnetic planets (H) the Atlantic
Example Output: H

Example Input: Fact1: Migration is a type of movement that changes population size., Fact2: Predatory animals migrate with the game animals., Question: When game animals move elsewhere, what else does? (A) relocation (B) prey animals (C) predatory animals (D) migratory birds (E) An object is seen (F) migrants (G) refract or absorb. (H) barks and snarls
Example Output: C

Example Input: Fact1: intense heat has a negative impact on an organism, Fact2: Plants and animals are organisms., Question: what does intense heat have a negative impact on? (A) the sun (B) h2o (C) plants (D) Bacteria (E) cells (F) humans (G) fire (H) animals
Example Output:
C