Task: Property Constraint Reasoning (ontology: Legal/Public_Procurement_Ontology)

The property 'Object of the contract' applies to instances of 'Public contract', and 'Public works concession contract' is a subclass of 'Public contract'. Which class can appear as the value of 'Object of the contract' for instances of 'Public works concession contract'?

A. Contract economic conditions
B. Contract procedure
C. Contract bodies
D. Contract object

Answer: Contract object