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]: You can find ferrous metals in (A) Grass (B) Vehicle scraps (C) Wood (D) Glass
[EX A]: B

[EX Q]: The national symbol for the US would most likely eat (A) roaches (B) birds (C) mosquitoes (D) salmon
[EX A]: D

[EX Q]: Which of the following is an example of decomposition? (A) a dog eating dog food (B) something growing on a dead tree trunk (C) a lion eating a gazelle (D) a parrot eating bird seed
[EX A]:
B