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: if weather is stormy then there is a greater chance of rain, Fact2: Rain is our usual form of precipitation., Question: If the weather is stormy, there is a greater chance for what? (A) nightfall (B) precipitation (C) sunshine (D) negative feedback (E) daylight (F) air pollution (G) trucks and cars (H) miles per hour
Example Output: B

Example Input: Fact1: bacteria cause food poisoning, Fact2: Vomiting tends to be related to food poisoning., Question: What tends to be related to bacteria? (A) heterotrophs (B) vomiting (C) chickenpox (D) healing (E) cancer (F) sea urchins (G) delayed-onset muscle soreness (H) Enzymes
Example Output:
B