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 does a tuna have that causes it to swim faster than a seahorse? (A) Lower body temperature (B) Bigger scales (C) Bigger fins (D) Thicker caudal fin
[EX A]: C

[EX Q]: A lack of water has a direct connection on the amount of available (A) shelters (B) sustenance (C) rainy days (D) mates
[EX A]: B

[EX Q]: Hitting the brakes hard leaves rubber on the road due to (A) the sun (B) abrasion (C) plastic tires (D) metal roadways
[EX A]:
B