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: Organisms cluster around hydrothermal vents in the ocean floor., Fact2: Background Hot water vents form inside cracks in the ocean floor., Question: Organisms cluster around hot water inside cracks where? (A) loose soil (B) ocean floor (C) food and shelter (D) tectonic plates (E) the ground (F) allow growth (G) Absorb light (H) survive
Example Output: B

Example Input: Fact1: building housing developments usually requires replacing animal habitats, Fact2: For salmon, habitat includes freshwater, estuarine and marine habitat., Question: What animal would not have its territory covered over by a housing development? (A) humans (B) bullfrogs (C) Frogs (D) raccoon (E) pigeons (F) salmon (G) opossum (H) deer
Example Output: F

Example Input: Fact1: when the seasons change from the summer to the fall , the amount of daylight will decrease, Fact2: Seasons are caused by the tilt of the earth's axis., Question: What determines the amount of daylight earth gets? (A) Heat energy (B) The darkness it gets (C) The bending of a ray of light (D) The tilt of the axis (E) The tilt of the sun's axis (F) electromagnetic energy (G) The brightness of the earth (H) rain or sun shine
Example Output:
D