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

Which of the following classes does 'XNYS - IBM' belong to as one valid explicit type? Context: ticker symbol for Wells Fargo & Company common stock listed on the New York Stock Exchange (NYSE)

A. ticker symbol
B. taxpayer identification number
C. transaction subcategory
D. registration authority code

Answer: ticker symbol