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: Pregnancy is the carrying of one or more offspring from fertilization until birth., Fact2: An elephant pregnancy lasts about 22 months., Question: How long is the time from fertilization until birth for an elephant? (A) minutes (B) fewer (C) winter (D) 22 months (E) eight (F) Ages 0 to 3 (G) 86400 (H) calibrated
Example Output: D

Example Input: Fact1: if an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity, Fact2: Most seeds sink in water., Question: Most types of what are more dense than water? (A) fats (B) trees (C) snail (D) Seeds (E) lipids (F) orchids (G) sugar (H) bushes
Example Output:
D