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: poisonous darts are used for defense by sea anemones, Fact2: Protection at the gateway is the best defense., Question: What are used as protection by sea anemones? (A) lamphreys (B) poisonous darts (C) tubular organ (D) feed on dead protists (E) coelenterates (F) islets of Langerhans (G) related organisms (H) moisturize their skin

Ex Output:
B


Ex Input:
Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Ants are social insects living in colonies., Question: What type of behavior does an ant have? (A) Randomized (B) Social (C) Solitary (D) dangerous (E) complex (F) Problematic (G) movement (H) kinetic

Ex Output:
B


Ex Input:
Fact1: Vertebrate chordates have a backbone., Fact2: Invertebrates have no vertebrae or backbone., Question: What kind of animal is classified as having a vertebrae? (A) it keeps an organism warm (B) invertebrate (C) vertebrate chordate (D) gastropod shells (E) the body's largest organ (F) remains of prehistoric life (G) hard boned animals (H) roundworm

Ex Output:

C