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]: Consumers eat other what? (A) oxygen (B) animal toys (C) rays (D) weaker bugs
[A]: D


[Q]: Obstacles that might impede a dune are (A) God (B) emotions (C) cacti (D) cancers
[A]: C


[Q]: A bear's blubber (A) enables him to keep his body cozy (B) enables him to eat more (C) is useless and a burden to his health (D) makes it more difficult for the bear to function
[A]:
A