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

Which of the following classes does 'Federal Reserve ninth district identifier' belong to as one valid explicit type? Context: identifier for the ninth district of the Federal Reserve, which represents the district governed by the Federal Reserve Bank of Minneapolis

A. Federal Reserve district identifier
B. business center code
C. region-specific identifier
D. statistical area identifier

Answer: Federal Reserve district identifier