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

The property 'Framework agreement derivative contract' applies to instances of 'Conclusion contract', and 'Dynamic purchasing system conclusion contract' is a subclass of 'Conclusion contract'. Which class can appear as the value of 'Framework agreement derivative contract' for instances of 'Dynamic purchasing system conclusion contract'?

A. Lot
B. Derivative contract
C. Extendable contract
D. Harmonized contract

Answer: Derivative contract