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: absorbing sunlight causes objects to heat, Fact2: Any object expands when heated and contracts when cooled., Question: absorbing sunlight causes objects to (A) Energy. (B) toughness (C) energy (D) warm (E) power (F) expand (G) photons (H) warmth
Example Output: F

Example Input: Fact1: Skin color is another polygenic trait., Fact2: Most dental variations are polygenic, that is controlled by several genes., Question: Skin color is a trait controlled by what? (A) prokaryotic cells (B) one gene (C) enzymes (D) keratin (E) one's descendants (F) several genes (G) the environment (H) a single gene
Example Output: F

Example Input: Fact1: Macroevolution is evolution over geologic time above the level of the species., Fact2: Species consist of groups of interbreeding populations., Question: Macroevolution is evolution over what time scale above the level of interbreeding populations? (A) ligt (B) relocation (C) minutes (D) graptolites (E) Most plants (F) geologic (G) standard clock (H) 24-hour
Example Output:
F