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]: Coal and oil directly removed from the ground are (A) directly consumed (B) thrown away (C) made into products (D) stored underground
[EX A]: C

[EX Q]: What is it called when a cell converts oxygen and carbohydrates into carbon dioxide, water, and energy? (A) adaptation (B) breathing (C) food transformation (D) catabolic reactions
[EX A]: D

[EX Q]: Which is likely to still be in water after treatment? (A) feces (B) dirt (C) harmless dissolved rocks (D) mercury
[EX A]:
C