Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'sea water environment'?

A. A small, human-made channel which has been dug for draining or irrigating the land.
B. An environment determined by the presence of brackish water.
C. An environmental system which has its properties and dynamics determined by hypersaline water.
D. An environmental system determined by seawater.

Answer: An environmental system determined by seawater.