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

The property 'has original issue discount amount' applies to instances of 'bond', and 'variable income bond' is a subclass of 'bond'. Which class can appear as the value of 'has original issue discount amount' for instances of 'variable income bond'?

A. StepSchedule
B. CouponSchedule
C. municipal debt source of funds
D. monetary amount

Answer: monetary amount