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

Which of the following definitions best describes 'natural lake'?

A. The deepest layer of water in such a lake typically does not contain any dissolved oxygen. The layers of sediment at the bottom of a the concept remain relatively undisturbed because there are no living organisms to stir them up.
B. A lake which is formed when a wide meander from a stream or a river is cut off to form a lake. They are called oxbow lakes due to the distinctive curved shape that results from this process.
C. A lake which has formed as the result of processes that are not or are only minimally driven by human activity.
D. A lake which is contained in a depression formed by the deformation and resulting lateral and vertical movements of a lithosphere.

Answer: A lake which has formed as the result of processes that are not or are only minimally driven by human activity.