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

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

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

Answer: Contract modification