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

The property 'denomination' applies to instances of 'collective investment vehicle', and 'sovereign wealth fund' is a subclass of 'collective investment vehicle'. Which class can appear as the value of 'denomination' for instances of 'sovereign wealth fund'?

A. fund debt
B. funds processing party
C. fund investment objective
D. currency

Answer: currency