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

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

A. postcode
B. Federal Reserve district identifier
C. statistical area identifier
D. region-specific identifier

Answer: Federal Reserve district identifier