Detailed Instructions: 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").
Q: Fact1: poisonous darts are used for defense by sea anemones, Fact2: Sea anemones are close relatives of corals ., Question: what uses poisonous darts for defense? (A) unicellular organisms (B) related organisms (C) feed on dead protists (D) single cell microorganisms (E) gila monsters (F) close relatives of coral (G) coelenterates (H) black widows
A:
F