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

The property 'realized in response to' applies to instances of 'realizable entity', and 'role' is a subclass of 'realizable entity'. Which class can appear as the value of 'realized in response to' for instances of 'role'?

A. reagent
B. obsolete liver paste
C. process
D. obsolete Flooded grasslands and savanna biome

Answer: process