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]: In an arid location, any various lifeforms will have to (A) work harder for nutriment (B) find food quite easily (C) find fast, easy nutriment (D) always eat their fill
[EX A]: A

[EX Q]: The circulatory system is so long it (A) could be wrapped around the earth (B) is the length of a horse (C) is the length of the universe (D) is the length of the universe
[EX A]: A

[EX Q]: Of these, a wolf will make its home very nearest to (A) mink (B) humans (C) lions (D) whales
[EX A]:
A