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: a plants require water for survival, Fact2: Water contains hydrogen and oxygen., Question: What do plants require for their survival? (A) Light (B) Proteins (C) Energy. (D) salinity (E) hydrogen (F) nutrients (G) sunlight (H) food
Example Output: E

Example Input: Fact1: Caffeine is a central nervous system stimulant., Fact2: Men seek the excitement of stimulants, because, for the time, the results are agreeable., Question: What excites the central nervous system? (A) motion (B) competition (C) eating (D) learning (E) heat (F) caffeine (G) sweating (H) turkey
Example Output:
F