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

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

A. municipal debt source of funds
B. CouponPayment
C. monetary amount
D. partial redemption allocation convention

Answer: monetary amount