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

The property 'has premium amount' applies to instances of 'call feature', and 'partial call feature' is a subclass of 'call feature'. Which class can appear as the value of 'has premium amount' for instances of 'partial call feature'?

A. rate basis convention
B. StepEvent
C. RegularCouponSchedule
D. monetary amount

Answer: monetary amount