Task: Property Constraint Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

The property 'has counterparty' applies to instances of 'contract', and 'unilateral contract' is a subclass of 'contract'. Which class can appear as the value of 'has counterparty' for instances of 'unilateral contract'?

A. counterparty
B. termination provision
C. transferable contract
D. warranty

Answer: counterparty