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]: if a chemical reaction occurs, it might have been triggered by which of these? (A) a person yelling at it (B) a person walking by it (C) a person looking at it intently (D) a person cranking up the room heater
[A]: D


[Q]: Teak can be found in (A) glacier sheets (B) blue songs (C) groves (D) underwater trenches
[A]: C


[Q]: Why was my son-in-law required to add rugs or carpeting to his upstairs apartment when the ground floor wasn't? (A) So it would look good then prospective renters took a tour (B) Because they didn't want him to scratch up the wood floors. (C) Because they didn't want the downstairs renters to be as likely to complain about noise (D) Because they didn't want to pay for carpeting themselves.
[A]:
C