The organisms living in the hydrothermal vent are provided by the energy with methane. Thus, option C is correct.
What are hydrothermal vents?
Hydrothermal vents are the fissures near the volcanos in the seafloor that supports the ecosystem deep inside the sea.
The animals near the hydrothermal vents are octopus, crabs, zoarcid fishes, etc. The living of the organism in the cold water in the vent is supported by the absence of sunlight. The carbon compound act as the energy source at the hydrothermal vent.
Thus, the organisms in the hydrothermal vent are supported with energy by methane molecules. Hence, option C is correct.
Learn more about the hydrothermal vent, here:
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