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]: 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
[EX A]: A

[EX Q]: Birds sometimes eat what? (A) grass (B) underground crawlers (C) insecticide (D) trees
[EX A]: B

[EX Q]: It's important to do this if you want your lab experiment to be performed correctly. (A) do the experiment blindfolded (B) comprehend all the steps that will be involved beforehand (C) forget about rules and wing it (D) do all the steps in a random order
[EX A]:
B