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]: Sunlight is a source of (A) wind energy (B) warmth (C) frigid temperatures (D) moonlight
[EX A]: B

[EX Q]: a student leaves a nail line on a mineral sample, so that mineral can be described as what? (A) a mineral (B) a soft mineral (C) a liquid mineral (D) a mineral melt
[EX A]: B

[EX Q]: If a body has nutriment running through all of it, then the thing responsible for moving it around is (A) arteries (B) lungs (C) knees (D) eyes
[EX A]:
A