instruction:
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").
question:
A ship navigates with a magnetic compass because it is (A) unpredictable (B) waterproof (C) tradition (D) predictable
answer:
D


question:
This animal thrives while the sun is down (A) the bull shark (B) the snowy owl (C) the prairie dog (D) the spotted giraffe
answer:
B


question:
Sound can be used for communication by (A) creatures (B) plants (C) water (D) planets
answer:

A