Answer
c.
Work Step by Step
Option a. is incorrect. Consumers must rely on other organisms for their energy needs.
Option b. is incorrect. Decomposers eat the remains of plants and animals as well as other dead matter.
Option d. is incorrect. Primary consumers are special consumers that eat only plants.
Option c. is correct. Primary producers take in inorganic matter from their environments to make food for themselves in the form of organic molecules.
