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: soil is formed by weathering, Fact2: Over time, the slow processes of weathering and erosion can turn large rocks into sand., Question: What is formed by erosion processing large rocks? (A) cracks (B) crust (C) Newton (D) roots (E) pan (F) soil (G) potash (H) biome
Example Output: F

Example Input: Fact1: tidal energy can be used to produce electricity, Fact2: Tidal energy schemes capture water at high tide and release it at low tide., Question: What can be produced by capturing water at high tide? (A) more fish (B) clearer water (C) mussels (D) warm water (E) an image (F) electricity (G) a delta (H) watershred
Example Output: F

Example Input: Fact1: a telephone is used for communication by humans over long distances, Fact2: Open water races of 5 to 25 kilometers are offered to long distance swimmers., Question: A telephone is used for communication by humans between what span? (A) 25 kilometers or more (B) members of their own species (C) global ecosystems (D) 5 centimeters (E) 1 meter (F) Males and females (G) A set number of times (H) 4 microns
Example Output:
A