The role of deep-sea coral reefs in the environment is to provide critical habitat for many other organisms. So, the correct option is C.
A coral reef is an underwater ecosystem characterized by reef-building corals.
Coral reefs provide critical habitat for many invertebrates and fishes. These organisms are also known as cold-water corals, as they are found in the deeper and darker part of the ocean where the temperature is extremely low.
Therefore, the role of deep-sea coral reefs in the environment is to provide critical habitat for many other organisms.
To learn more about the Coral reefs, refer to the link:
https://brainly.com/question/364711