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]: Which of the following is an example of ecological succession? (A) a group of horses slowly becomes extinct due to loss of habitat (B) a group of rats in a lab learn to navigate a maze (C) a soccer team trains for the championship (D) Trees, insects, and birds in a forest grew from wildfire-ravaged lands
[A]: D


[Q]: When I hear news of a warm front I make sure to bring (A) game boy (B) clocks (C) guns (D) waterproof appendage covers
[A]: D


[Q]: If water gets _____, it may cause a chemical reaction (A) hotter (B) empty (C) air (D) afraid
[A]:
A