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

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

A. material entity
B. amplitude of temperature of air
C. ocean surface stress
D. surfactant

Answer: material entity