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

The property 'has funding source' applies to instances of 'municipal security', and 'municipal bond' is a subclass of 'municipal security'. Which class can appear as the value of 'has funding source' for instances of 'municipal bond'?

A. municipal debt source of funds
B. CouponPayment
C. variable interest expression
D. bond insurance

Answer: municipal debt source of funds