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").
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Question: Fact1: preventing the transfer of heat from an organims 's body causes that organism to keep warm, Fact2: Body heat is trapped in the haircoat., Question: The haircoat of a dog is useful for (A) recovery time from fatigue (B) When it's cold (C) protect them (D) finding bones (E) preventing dog days (F) keeping the dog warm (G) keeping the dog cool (H) water conservation

Answer: F

Question: Fact1: a breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: Oxygen enters the respiratory system through the mouth and the nose., Question: Breathing masks are used to keep harmful particles from entering the mouth and the what? (A) body (B) eyes (C) air (D) skin (E) gullet (F) nose (G) ears (H) lungs

Answer: F

Question: Fact1: riding a bike does not cause pollution, Fact2: Carbon monoxide is, of course, an air pollutant., Question: What is not released after riding a bike? (A) carbon monoxide (B) harmful substances (C) fossil fuels (D) heat energy (E) one celled organisms (F) hard outer covering (G) layers of fat (H) Pituitary gland

Answer:
A