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

The property 'determined by part of' applies to instances of 'system', and 'constructed transport system' is a subclass of 'system'. Which class can appear as the value of 'determined by part of' for instances of 'constructed transport system'?

A. label
B. oxidising agent
C. amplitude of temperature of air
D. material entity

Answer: material entity