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 Q]: Fact1: All cnidarians are aquatic., Fact2: Cnidarians are also called coelenterates., Question: What are aquatic? (A) coelenterates (B) trees (C) lizards (D) angiosperm (E) holding nutrients (F) trees and flowers (G) the Sun (H) humans
[EX A]: A

[EX Q]: Fact1: Courtship is behavior that is intended to attract a mate., Fact2: Complex courtship rituals precede mating., Question: What are behavior that is intended to attract a mate? (A) a doorbell (B) firm hugs (C) Complex rituals (D) Riding a bike (E) Behaviour modifications (F) Magnets (G) honeybees (H) Friendship
[EX A]: C

[EX Q]: Fact1: pesticides can cause pollution, Fact2: Biologists have shown that light pollution harms animals., Question: What can harm animals? (A) pesticides (B) bacteria (C) hay (D) cigarettes (E) amoebae (F) grain (G) manure (H) mines
[EX A]:
A