Task: Property Constraint Reasoning (ontology: Earth_Environment/EnvironmentOntology)

The property 'preceded by' applies to instances of 'occurrent', and 'temporal region' is a subclass of 'occurrent'. Which class can appear as the value of 'preceded by' for instances of 'temporal region'?

A. obsolete bovine cheese product
B. obsolete Bailey biome
C. obsolete marine pelagic feature
D. occurrent

Answer: occurrent