All animals are
a.
producers
b.
omnivores
c.
herbivores
d.
consumers

Consumers. Obviously all animals are not b or c as there are animals that are both. Plants are producers as they produce energy, and animals consume the energy making them consumers. 

The answer id (D) Consumers, it's so not producer. Plants are producer. Not all animals are herbivores and carnivores.

Your answer is going to be a. i know my biology