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

Which of the following classes does 'Industry Classification Benchmark scheme' belong to as one valid explicit type? Context: classification scheme that is a hierarchical four-level system classifying companies based on their main source of revenue

A. measurement scale
B. passport number identification scheme
C. classification of financial instruments code scheme
D. industry sector classification scheme

Answer: industry sector classification scheme