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: if all members of a species cannot produce offspring then that species will likely become extinct, Fact2: Avian species are less likely to become extinct if they are common across large ranges., Question: Avian species are less likely to end up extinct if they what? (A) single-celled organisms (B) important habitats (C) abandon habitats (D) stop reproducing (E) animals with backbones (F) produce offspring (G) population movement (H) destroy offspring
Example Output: F

Example Input: Fact1: Skin color is another polygenic trait., Fact2: Tourette syndrome a polygenic disorder ., Question: what is tourette syndrome? (A) malaria (B) cancer (C) trait (D) fever (E) cell (F) antigen (G) virus (H) Type O
Example Output: C

Example Input: Fact1: Fish have a centralized nervous system with a brain., Fact2: Nervous A reptile has a brain and nervous system., Question: What organs do both fishes and reptiles have? (A) legs (B) they all walk on land (C) gills (D) the eyes (E) protected (F) brains (G) alveoli (H) vision
Example Output:
F