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 '02079K305'? Context: Alphabet Inc. class A common share CUSIP

A. market identifier
B. unique transaction identifier
C. proprietary security identifier
D. operating-level market identifier

Answer: proprietary security identifier