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: This can be used to light up a light bulb (A) grass (B) dirt (C) stones. (D) biofuel

A: D
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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: O2 molecules stacked on top of each other create weight which is then tallied by a (A) speedometer (B) odometer (C) barometer (D) a microscope

A:
C
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