I think it would be D. Dominant
The answer is B. Multiple food chains make up a food web of an ecosystem. A food web is made up of multiple food chains, and shows the relationships between different organisms in an ecosystem.
The order of processes of nature are towards greater entropy. This means towards greater disorder. These processes occurring in nature and surroundings involves a mass and an energy. The matter where mass is contained is the system and energy is the tool which changes and process occur. In this case, answer is true.