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: gases released during the use of fossil fuels causes global warming, Fact2: Oil is a fossil fuel., Question: Gases released during the use of oil causes what? (A) global warming (B) better weather on the earth (C) colder weather (D) less oily air (E) The atmosphere (F) flooding (G) Temperature (H) cleaner air to breathe
Example Output: A

Example Input: Fact1: Mutations are essential for evolution to occur., Fact2: Mutations are changes in the DNA sequence., Question: What is essential for evolution to occur? (A) Changes in DNA sequences (B) Plant reproduction (C) Natural disasters (D) Gamma radiation (E) biological diversity (F) DNA sequences staying the same (G) the environment (H) that material's properties
Example Output: A

Example Input: Fact1: Zooplankton are tiny animals that feed on phytoplankton., Fact2: Scientists have shown that ocean organisms known as zooplankton harbor cholera bacteria., Question: What ocean organisms feed on phytoplankton? (A) gills (B) fungi (C) a fish (D) life (E) CO 2 (F) edible (G) sharks (H) tiny
Example Output:
H