Correct Answer: Detritus food chain

Solution : The correct option is the Detritus food chain .

The detritus food chain (DFC) is a form of food chain that begins with dead organic matter as the major source of energy, and nutrients, including decaying plants, and animals. The detritus food chain, as opposed to the standard food chain, focuses on the decomposition process, and the role of detritivores, and decomposers in recycling nutrients in ecosystems.