The correct option is A A hognose snake pretends as dead to trick the predator.
Behavioral adaptation is the process by which an organism or a species changes its pattern of action to better suit its environment. Eastern hognose snakes pretend to be dead to trick their predators. They also pump up their necks from inside, when feel threatened, to fake the predators and look like a cobra, a real dangerous species of the snake family. It is a form of behavioral adaptation or defence.