Answer: C
Over 99.9%, making them look like black holes
Credible · Smithsonian Institution
Researchers discovered species like the Pacific blackdragon with skin that absorbs up to 99.956% of light. Their skin cells are packed with melanosomes shaped to trap photons. Even under a photographer's strobe, these fish appear only as featureless silhouettes, essentially becoming invisible against the dark void of the deep ocean.
Search 'Ultra-black deep sea fish' on Google to see how they look like silhouettes even under bright lights. Challenge your friend who loves 'scary sea creature' videos — see if they can guess how these fish managed to evolve a real-life invisibility cloak.
