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

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

A. decreased quality
B. material entity
C. duration of stellar radiation
D. biomarker

Answer: material entity