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]: Dirt is moved from one part of a forest to another, and travels across a field to get there. The movement is (A) caused by gusts (B) due to clouds (C) made by trees (D) because of litter
[A]: A


[Q]: A person yells inside a garage. Their voice echoes and they hear (A) a bird chirping away (B) a dog barking loudly (C) a car engine rev (D) a shout repeating softer
[A]: D


[Q]: As Ethanol burns it expels what into the ozone (A) radiation (B) lightning (C) CO2 (D) nitrogen
[A]:
C