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: fat is used to keep animals warm, Fact2: Humans are a new type of animal., Question: what uses fat to keep warm? (A) Lobsters (B) bacon (C) humans (D) pigeons (E) insects (F) omnivores (G) plants (H) bears

A: C
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Q: Fact1: hydropower requires damming a river, Fact2: Another source of energy is hydropower., Question: What is a source of energy? (A) fossil fuels (B) cooking (C) damming a river (D) sleeping (E) napping (F) Electrical energy (G) our nearest star (H) sunlight

A: C
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Q: Fact1: harming an animal species causes that animal 's population to decrease, Fact2: Serious questions remain regarding what happens if endangered populations continue to decrease., Question: harming an animal species causes that animal's species to become what? (A) deforestation (B) an animal species (C) threatened (D) barrel-shaped (E) more populous (F) endangered (G) more popular (H) imbalanced

A:
F
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