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

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

A. anatomical entity
B. food
C. material entity
D. feeding behavior

Answer: material entity