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: Evaporation of sweat uses energy, and the energy comes from body heat., Fact2: When sweat is evaporated into the air, it provides additional cooling., Question: Energy that comes from body heat can help with  (A) recovery (B) commuting (C) movement (D) cooling (E) strength (F) stay warm (G) health (H) motion

A: D
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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: crumple means change shape from smooth into compacted by physical force, Fact2: Crumple zones and bumpers are often weaker and poorer performing than in cars., Question: What part of a car easily changes shape from smooth to compacted by physical force? (A) rock (B) arteries (C) fender-bender (D) an object (E) bumper (F) wreck (G) Gravity (H) sedan

A:
E
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