Which of the following describes a relationship of predator-prey?

A. A tick attaches itself to the inside leg of a deer.

B. A moray eel eats a fish swimming by.

C. Birds feed off the insects that are stirred up from the grasses as cattle move through.

D. Oxpecker birds eat parasitic ticks off the backs of zebras.

Option C) Birds feed off the insects that are stirred up from the grasses as cattle move through.

Explanation:

A predator is a living organism (usually of bigger in size) that feeds on whole of another organism (prey).

When cattle move through grasses, their hooves displaces insects which are sighted and fed on by flying birds.

Thus, the birds are predators while the insects are prey