Choose the best topic sentence to introduce the paragraph below.
Flounder have speckled skin that camouflages them from predators on the ocean floor and helps them prey on shrimp and worms. The body of the American stick insect resembles a twig, making it virtually invisible to predators when it remains still. Stonefish have rough bodies without scales and avoid predators by blending in with rocks or hiding in crevices in shallow waters.
answer choices
Camouflages is just one of many ways animals outsmart the enemies who prey on them.
Some animals rely on natural camouflage to conceal themselves from predators.
Some types of fish are able to use camouflage to avoid larger fish and to surprise their prey.