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: an animal usually requires a warm body temperature for survival, Fact2: Squirrels hide and sleep in a secret warm place all winter., Question: What requires hiding and sleeping for survival? (A) bacteria (B) rice (C) amphibians (D) organisms (E) Frogs (F) trees (G) humans (H) animals

A: H
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Q: Fact1: a stopwatch is used to measure time, Fact2: Reaction time was measured with a stopwatch in minutes and seconds., Question: What is used to measure minutes? (A) light (B) barometer (C) stopwatch (D) weater (E) thermometer (F) lamphreys (G) feedback (H) sound

A: C
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Q: Fact1: microorganisms cause food to spoil, Fact2: Irradiation kills microorganisms that spoil food., Question: what can keep food from going bad? (A) irradiation (B) Cooking (C) Dehydration (D) sensory neurons (E) animal transport (F) Enzymes (G) nutrients (H) layers of fat

A:
A
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