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 'EUR-6M EURIBOR SWAP-EUREX vs LCH-ICAP-Bloomberg'?

A. maturity level
B. quantity kind
C. secondary unit designator
D. ledger account classifier

Answer: quantity kind