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]: Jamaican natives have a dark skin tone do to (A) lack of nutrients (B) camouflage (C) solar radiation (D) their diet
[EX A]: C

[EX Q]: Glasses help you (A) fry ants (B) pay for crimes (C) remedy eyesight issues (D) observe Uranus
[EX A]: C

[EX Q]: A light bulb will turn on when what flows to it? (A) fire (B) zapping energy (C) wind (D) water
[EX A]:
B