Q: 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").
Fact1: Echinoderms lack respiratory and excretory systems., Fact2: Starfish and sea urchins are also echinoderms., Question: What kind of animal doesn't have a respiratory or excretory system? (A) a fish (B) bears (C) ant (D) whale (E) humans (F) starfish (G) mammals (H) llama
A:
F