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: Phylogeny is the evolutionary history of a group of related organisms., Fact2: Much of evolutionary biology involves the history of organic diversity., Question: Phylogeny is the history and organic diversity of what? (A) unicellular organisms (B) unrelated organisms (C) evolved areas (D) unrelated events (E) one-celled animals (F) trees and flowers (G) related organisms (H) ecosystems
Example Output: G

Example Input: Fact1: Prokaryotes are single-celled organisms that lack a nucleus., Fact2: Prokaryotes are usually microscopic and bacteria is an example of a prokaryote., Question: What are single celled organisms that do not have a nucleus? (A) Most plants (B) nucleus (C) ferns (D) fossil fuels (E) bushes (F) Eukaryotes (G) leech (H) bacteria
Example Output: H

Example Input: Fact1: heating an egg causes a chemical reaction in the egg, Fact2: Fire is a chemical reaction., Question: What can fire be used to do to an egg? (A) kill them (B) Decorate it. (C) warmth (D) Create hydrogen sulfide. (E) It expands (F) Heat it. (G) Fertilize it. (H) protect them
Example Output:
F