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

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

A. Tender
B. Concept
C. Contract object
D. Contract execution conditions

Answer: Contract object