Select an animal which may be a prey and also a predator :

The animals called predators have :

Out of the four alternatives,choose the one which can be substituted for the given words/sentences. An animal which lives by preying on other animals

The animal of prey have :

Assertion: Predators in nature are 'prudent'. Reason: If a predator is too efficient and overexploits its prey, then the prey might become extinct and following it, the predator will also become extinct for lack of food.

Which of the following organisms in the given food web act both as a predator and a prey?