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: the emission of sulfur dioxide causes acid rain, Fact2: The sulfur dioxide is converted into sulfuric acid., Question: what causes acid rain? (A) gases (B) rainfall (C) Pollution (D) fossil fuels (E) emissions (F) vehicles (G) burning (H) wind
Example Output: E

Example Input: Fact1: keeping food cold is used for keeping food fresh, Fact2: A refrigerator that keeps food cold., Question: What is a refrigerator used for? (A) Electrical energy (B) A place to hang magnets (C) Cooling your home (D) staying warm (E) A doorstop (F) electricity (G) energy usage (H) Keeping food fresh
Example Output: H

Example Input: Fact1: Cell division is more complex in eukaryotes than prokaryotes., Fact2: All plants are eukaryotes., Question: what has more complex cell division than prokayrotes (A) insects (B) tortoises (C) mammals (D) parasites (E) plants (F) fungi (G) cacti (H) animals
Example Output:
E