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]: Why animal may use a rock as shelter (A) Centipede (B) Dolphin (C) Seagull (D) Dog
[A]: A


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


[Q]: A bear is fortunate enough to (A) see a rainbow (B) learn history (C) time travel (D) have magic
[A]:
A