Fact 1: Many consumers feed at more than one trophic level. Fact 2: Carnivores are consumers which eat animals or other consumers. Given the two facts above, many what feed at more than one trophic level?

Select from the following. A). roots. B). humans. C). carnivores. D). cacti. E). animals. F). people. G). algae. H). plants.
The answer is:
C).