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]: Which is nonmagnetic? (A) nail (B) washing machine (C) traffic cone (D) refrigerator
[A]: C


[Q]: The everglades where nearly wiped out by (A) the sun (B) builders (C) sea cows (D) alligators
[A]: B


[Q]: food is a source of energy for what? (A) waterfalls (B) fires (C) grass snakes (D) mountains
[A]:
C