All animals are A. autotrophs. B. biotrophs. C. heterotrophs. D. polytrophs.

C. Heterotrophs

Explanation:

Heterotrophs cant make their own food. They cant make there own food so they eat animals and plats and all sorts of different things. Because of this heterotrophs are known as consumers. Anything that consumes/eats things are consumers.

Heterotrophs, we cannot make our own food so we much consume in order to gain energy. Plants are a good example of autotrophs because they are able to produce their own which also works as a good source of energy for us heterotrophs.