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

The property 'identifier issued by' applies to instances of 'tranched m b s instrument', and 'floater tranche' is a subclass of 'tranched m b s instrument'. Which class can appear as the value of 'identifier issued by' for instances of 'floater tranche'?

A. define notes parameters
B. assess pool suitability for issuance
C. primary identifier issuer
D. close deal

Answer: primary identifier issuer