In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

Q: the earth revolves around the sun in (A) a day (B) a year (C) a week (D) a month

A: B
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Q: an area of low-lying ground near to a river is at risk of (A) over fishing (B) balloon landings (C) droughts (D) H20 accumulation

A: D
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Q: Carnivores' only source of what comes from other animals (A) flying (B) money (C) restaurants (D) sustenance

A:
D
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