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]: adding a direct flame to container of acid causes a (A) dormant cycle (B) lot of nothing (C) lower temperature (D) vapor expulsion
[A]: D


[Q]: Due to camouflage, you are less likely to be able to see a polar bear in (A) a church (B) the zoo (C) alaska (D) africa
[A]: C


[Q]: Robotics would have great difficulty in existing if these had yet to be invented. (A) pots (B) cats (C) desktops (D) paper towels
[A]:
C