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


[Q]: Which of the following would have best aided a vessel at sea in crossing the sea in the 18th century? (A) A radar system (B) An old soothsayer (C) An experienced navigator (D) A crow's nest
[A]: C


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