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: Echinoderms use pheromones to communicate with each other., Fact2: All echinoderms are deuterostomes ., Question: What use pheromones to communicate with each other? (A) passenger pigeons (B) honeybees (C) deuterostomes (D) Most plants (E) insects (F) animals (G) huddle together (H) orchids
Example Output: C

Example Input: Fact1: Rivers are usually larger than streams., Fact2: Fish is available in the rivers and lakes of the district in large quantities., Question: Habitats where fish live in large quantities are usually larger than what? (A) an object (B) Inches (C) crocodiles (D) body water (E) Decibels (F) Weight (G) streams (H) Length
Example Output: G

Example Input: Fact1: threatening behavior by predators causes a porcupine to extend its quills, Fact2: Fishers are one of the few specialized predators on porcupines., Question: What will a porcupine do when it feels a fisher is displaying threatening behavior? (A) bite the fisher (B) decreases its bodily water (C) Change colors (D) extend it's quills (E) kill them (F) the body's largest organ (G) back away (H) fight the fisher
Example Output:
D