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

The property 'interacts with' applies to instances of 'material entity', and 'material anatomical entity' is a subclass of 'material entity'. Which class can appear as the value of 'interacts with' for instances of 'material anatomical entity'?

A. generation of precursor metabolites and energy
B. tracer
C. material entity
D. energy transfer process

Answer: material entity