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").

[EX Q]: Which is most harmful to a human? (A) dynamite going off (B) reading email (C) balloons popping (D) opening a soda
[EX A]: A

[EX Q]: What are a source of fibers? (A) water (B) plantlife (C) rocks (D) air
[EX A]: B

[EX Q]: At a campsite one night we all gather round a fire to roast marshmallows; this is an example of (A) dinner (B) fusion (C) maillard reaction (D) competition
[EX A]:
C