Task: Inferred Instance Class Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

After reasoning over the ontology, which class is one valid inferred class for the instance 'Dow Jones Industrial Average'? Context: equity index of 30 substantial stocks that are traded on the New York Stock Exchange (NYSE) and the Nasdaq

A. price analytic
B. reference index
C. economic indicator
D. market spread

Answer: reference index