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: All cnidarians are aquatic., Fact2: Cnidarians are also called coelenterates., Question: What are aquatic? (A) coelenterates (B) trees (C) lizards (D) angiosperm (E) holding nutrients (F) trees and flowers (G) the Sun (H) humans
Example Output: A

Example Input: Fact1: Plastics are made from petroleum and produce toxic waste., Fact2: Plastic bags are made from non-renewable petroleum resources., Question: What comes from non-renewable resources? (A) plastic bags (B) renewable goods (C) burning coal (D) emissions (E) carbon dioxide (F) organic plants (G) paper (H) Sulfur dioxide
Example Output:
A