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]: What activity is a part of the wheel of organic life? (A) having sex (B) black holes (C) nuclear meltdowns (D) supernova
[EX A]: A

[EX Q]: A plant needs to use the roots of itself to move essential things (A) to the dirt (B) to the sky (C) to the plasma (D) to the buds
[EX A]: D

[EX Q]: On the moon people are pulled down (A) the same (B) more (C) unpredictably (D) less
[EX A]:
D