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

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

A. temporal distribution quality
B. feeding behavior
C. amount of carbon atom in environmental material
D. material entity

Answer: material entity