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

Which of the following classes does 'Apple Inc. common stock financial instrument short name' belong to as one valid explicit type? Context: Apple Inc. common stock financial instrument short name (FISN)

A. financial instrument short name
B. unit of account identifier
C. currency identifier
D. driver's license identifier

Answer: financial instrument short name