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

The property 'regulates' applies to instances of 'process', and 'environmental system process' is a subclass of 'process'. Which class can appear as the value of 'regulates' for instances of 'environmental system process'?

A. greenhouse gas
B. application
C. process
D. adhesion

Answer: process