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]: The topography of our only natural satellite's surface is (A) smooth (B) made of cheese (C) full of gold (D) mountainous
[A]: D


[Q]: If something is in an ecosystem, it could be (A) invisible (B) vacuum of space (C) lacking life (D) alien
[A]: C


[Q]: A prickly pear absorbs nutrients from (A) below it (B) far from it (C) beside it (D) above it
[A]:
A