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

Which of the following definitions best describes 'cave collapse'?

A. A surface shape quality inhering in a bearer by virtue of the bearer's exhibiting a degree of bending.
B. An aerosol that is suspended in an atmosphere.
C. A structural collapse process during which the walls of cave are unable to support the load placed upon them.
D. A food product which normally exists as an ingredient to another food product, rather than eaten on its own, and is more complex than a chemical food component.

Answer: A structural collapse process during which the walls of cave are unable to support the load placed upon them.