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: killing microorganisms in food can be used to extend the shelf life of that food, Fact2: Cooking kills the microorganisms., Question: What can extend the shelf life of food? (A) cooking it (B) Enzymes (C) evaporation (D) rays or beams (E) running it under water (F) Proteins (G) seasoning it (H) putting it on a counter
Example Output: A

Example Input: Fact1: an earthquake causes the ground to shake, Fact2: Seismic waves are produced by earthquakes., Question: Seismic waves cause what to shake? (A) earth (B) body water (C) wind (D) tremors (E) sunlight (F) the ground (G) Sediment (H) rocks
Example Output: F

Example Input: Fact1: Flatworms belong to the phylum Platyhelminthes., Fact2: Flatworms Flatworms or Platyhelminthes include flukes, tapeworms, and turbellarians., Question: flukes, tapeworms, and turbell are (A) major threat to health (B) types of flat leeches (C) Plant growth is reduced (D) types of earthworms (E) competing for resources (F) types of snakes (G) types of flatworms (H) parasites
Example Output:
G