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: Marine species live mainly in shallow coastal waters., Fact2: Killer whales prefer shallow and colder coastal waters., Question: What are killer whales? (A) red and black (B) They have thick fur (C) dangerous (D) sharks (E) deep sea creatures (F) marine species (G) Absorb light (H) animals
[EX A]: F

[EX Q]: Fact1: All animals are heterotrophs., Fact2: Heterotrophic bacteria derive energy from the breakdown of organic molecules., Question: What derive energy from the breakdown of organic molecules? (A) Most plants (B) hydrocarbons (C) potatoes (D) all stones (E) all water sources (F) all mountains (G) all animals (H) Generating heat
[EX A]: G

[EX Q]: Fact1: lightning can cause a forest fire, Fact2: Like fire cleaning out a forest, it leads to new growth and revitalization., Question: What can cause new growth and revitalization in a forest? (A) flowers (B) a hosta (C) stardust (D) male gametes (E) contacts (F) hormones (G) internet connections (H) lightning
[EX A]:
H