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

The property 'has habitat' applies to instances of 'organism', and 'Archaea' is a subclass of 'organism'. Which class can appear as the value of 'has habitat' for instances of 'Archaea'?

A. water flow process
B. environmental system
C. anthropogenic light pollution
D. ecosystem decay

Answer: environmental system