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

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

A. Contract economic conditions
B. Contract bodies
C. Tender
D. Contract modification

Answer: Contract modification