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

The property 'has measure' applies to instances of 'debt pool', and 'home equity line of credit pool' is a subclass of 'debt pool'. Which class can appear as the value of 'has measure' for instances of 'home equity line of credit pool'?

A. exchange traded bond price
B. prepayment speed
C. equivalent yield calculation method
D. pool factor

Answer: prepayment speed