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 'Chicago Mercantile Exchange (CME) date established'? Context: date that Chicago Mercantile Exchange (CME) was established as a Delaware Corporation

A. time instant
B. calendar period
C. recurrence interval
D. time interval

Answer: time instant