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 a zoo, a polar bear exhibit will contain (A) salt (B) cacti (C) strong fans (D) sand
[EX A]: C

[EX Q]: A person who wants to eat a watermelon may consider spitting out its (A) dark pips (B) good taste (C) coco pebbles (D) red fruit
[EX A]: A

[EX Q]: A group of bunnies move into a field and start to have litters of kits, and soon rabbits are all over the field, so the foxes that live six miles away (A) relocate to the field (B) eat all the bunnies (C) find new food sources (D) start to go hungry
[EX A]:
A