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]: What could be used as an electrical conductor (A) A penny (B) Shoe laces (C) Wood (D) A button
[EX A]: A

[EX Q]: A light is refracted when (A) it shines at a gem (B) it shines at a mirror (C) it reflects off a spoon (D) it reflects off a car
[EX A]: A

[EX Q]: What animal will have the least pressure on it (A) a fish at the bottom of the ocean (B) a salmon swimming just under the surface of river (C) a cat running down a street (D) a falcon flying above a peak
[EX A]:
D