TASK DEFINITION: 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").
PROBLEM: If something is in an ecosystem, it could be (A) invisible (B) vacuum of space (C) lacking life (D) alien

SOLUTION: C

PROBLEM: A sunburn is most likely to happen after hiking in a (A) desert (B) forest (C) wetland (D) jungle

SOLUTION: A

PROBLEM: If the source of a bean is very far away, and the bean becomes a source for another, separate bean, then the original bean was (A) a bad seed (B) a dispersed seed (C) a fresh shell (D) a meaty liver

SOLUTION:
B