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

The property 'is underwritten by' applies to instances of 'securities offering', and 'firm commitment offering' is a subclass of 'securities offering'. Which class can appear as the value of 'is underwritten by' for instances of 'firm commitment offering'?

A. security
B. underwriter
C. issuer
D. financial instrument

Answer: underwriter