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: How might a dresser crab avoid attention in an aquarium containing pieces of velvet and necklaces made of colorful stones? (A) hold a vibrant piece of cloth and wave it rapidly back and forth (B) display bright colors to stand out to the fish (C) transform into a bureau replete with clothing (D) disguise itself as just some junk on the bottom of the tank
A:
D