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: Mutualism is a symbiotic relationship in which both species benefit., Fact2: Dogs and humans are symbiotic species., Question: what exists between dogs and humans? (A) mutualism (B) gravity (C) communication (D) antigens (E) several genes (F) space between (G) electrons (H) german shepherd
Example Output: A

Example Input: Fact1: Annelids have the amazing capacity to regrow segments that break off., Fact2: Earthworms Earthworms are in the phylum Annelids., Question: _ have the amazing capacity to regrow segments. (A) ferns (B) arachnids (C) roots (D) earthworms (E) anthropods (F) crustacean (G) loose soil (H) root growth
Example Output: D

Example Input: Fact1: Ribosomes are structures in the cytoplasm where proteins are made., Fact2: For example, proteins are made in an organelle called a ribosome., Question: what are made in an organelle in the cytoplasm? (A) Acids (B) bioaerosols (C) glucose (D) parasites (E) Energy (F) acetic acid (G) Proteins (H) Energy.
Example Output:
G