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 'XNAS - AAPL'? Context: ticker symbol for Apple Inc. common stock listed in the Nasdaq (NASDAQ-NGS)

A. currency identifier
B. driver's license identifier
C. reassignable identifier
D. precious metal identifier

Answer: reassignable identifier