The correct answer is C. Coprophagous.
Autotrophs are organisms that can produce their own food from inorganic substances. Heterotrophs are organisms that cannot produce their own food and must consume other organisms or organic matter to survive. Saprotrophs are heterotrophs that feed on dead or decaying organic matter. Coprophagous are heterotrophs that feed on feces.
Autotrophs are the primary producers in an ecosystem. They use sunlight or chemical energy to convert inorganic substances into organic compounds. These organic compounds are then used by heterotrophs as a source of energy and nutrients.
Heterotrophs can be divided into two groups: consumers and decomposers. Consumers are heterotrophs that feed on other organisms. Decomposers are heterotrophs that feed on dead or decaying organic matter.
Saprotrophs are decomposers that break down organic matter into simpler inorganic compounds. These inorganic compounds are then released into the environment and can be used by autotrophs to produce new organic compounds.
Coprophagous are heterotrophs that feed on feces. Feces is a rich source of nutrients, including proteins, carbohydrates, and fats. Coprophagous organisms play an important role in the ecosystem by recycling nutrients.