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

Which of the following definitions best describes the instance 'Chicago Board Options Exchange'?

A. the instance operating-level market founded in 1792 that is a market place for trading of common stock and other securities
B. the NYSE Holdings LLC legal entity that is a Delaware limited liability company
C. date that NYSE Arca, Inc. was established as a Delaware corporation
D. the instance operating-level market founded in 1973 that is the world's largest options market with contracts focusing on individual equities, indexes, and interest rates

Answer: the instance operating-level market founded in 1973 that is the world's largest options market with contracts focusing on individual equities, indexes, and interest rates