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").

[Q]: A person wants to mine something that will attract metals. The person decides to search out some (A) ceramic stones (B) iron pebbles (C) glass beads (D) plastic beads
[A]: B


[Q]: Humming birds may help the growth of (A) cars (B) buildings (C) ants (D) tulips
[A]: D


[Q]: Which of these industries is most likely to effect an ecosystem? (A) food (B) coal (C) solar (D) retail
[A]:
B