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]: If you see a mushroom on an old decaying log, its because a mushroom is a decomposer, which gets its food from (A) non-alive things (B) space (C) computers (D) the store
[EX A]: A

[EX Q]: Which is likely to spread seed? (A) a car (B) a sun beam (C) a whale (D) a hummingbird
[EX A]: D

[EX Q]: Tsunamis (A) have little impact on the environment (B) can be easily halted (C) can rearrange coastal shorelines (D) can encourage economic growth
[EX A]:
C