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

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

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

Answer: Federal Reserve district identifier