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

The property 'has structure type' applies to instances of 'collateralized debt obligation', and 'cash c d o tranche' is a subclass of 'collateralized debt obligation'. Which class can appear as the value of 'has structure type' for instances of 'cash c d o tranche'?

A. arbitrage cdo objective
B. jump z trigger event
C. c d o portfolio
D. c d o cashflow treatment structure

Answer: c d o cashflow treatment structure