You will be given a definition of a task first, then some input of the task.
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").

Decomposition occurs when a decomposer recycles nutrients from dead organisms back to the soil by eating them; what is an example of this? (A) flies laying eggs on a body (B) worms devouring a corpse (C) wet leaves denigrating in a pile (D) slugs digging through mulch
Output:
B