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").

Ex 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

Ex Output:
C


Ex Input:
Fact1: friction causes an object to lose energy, Fact2: Objects An object can be one of several things., Question: What does friction cause things to lose? (A) heat (B) moisture (C) toughness (D) Energy. (E) traits (F) light (G) energy (H) cartilage

Ex Output:
G


Ex Input:
Fact1: Male dogs use pheromones in urine to mark their territory., Fact2: Coyotes maintain their territory by marking it with urine., Question: what use pheromones in urine to maintain their territory? (A) baby dogs (B) bears (C) rabbit (D) Male dogs (E) girl puppies (F) mammals (G) female dogs (H) animals

Ex Output:

D