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").

Example Input: You can work longer when (A) Autumn changes to Winter (B) spring changes to summer (C) tree leaves start falling (D) the first snow starts falling
Example Output: B

Example Input: A hatched chick will know how to construct a nest when it needs to because it is (A) instinctual (B) considerate (C) learned (D) a given
Example Output: A

Example Input: If more pollution is released into the air, what happens to the planet's temperature? (A) it falls (B) it becomes stabile (C) it climbs (D) it becomes volatile
Example Output:
C