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]: A ship navigates with a magnetic compass because it is (A) predictable (B) unpredictable (C) waterproof (D) tradition
[EX A]: A

[EX Q]: Within a twenty four hour period, a person could experience (A) a globe's complete rotation (B) thirty hours of night (C) a day on Pluto (D) a year of schooling
[EX A]: A

[EX Q]: The moon (A) has less matter than Earth (B) orbits around the sun (C) weighs more than Earth (D) has more mass than Earth
[EX A]:
A