Task: Instance Class Understanding (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Which of the following classes does 'Committee on Uniform Securities Identification Procedures (CUSIP) scheme' belong to as one valid explicit type? Context: national security identification scheme used to identify all North American stocks and registered bonds for the purposes of facilitating clearing and settlement of trades

A. lifecycle
B. classification scheme
C. indexing scheme
D. national security identification scheme

Answer: national security identification scheme