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

Which of the following classes does 'Chicago Board Options Exchange as service provider' belong to as one valid explicit type? Context: Chicago Board Options Exchange (CBOE) in its role as a financial service provider and holding company, which is one of the world's largest exchange holding companies, offering cutting-edge trading and investment solutions to investors around the world. CBOE offers trading across a diverse range of products in multiple asset classes and geographies, including options, futures, U.S. and European equities, exchange-traded products (ETPs), global foreign exchange (FX), and multi-asset volatility products. Our trading venues include the largest options exchange in the U.S. and the largest stock exchange by value traded in Europe. In addition, the company is the second-largest stock exchange operator in the U.S. and a leading market globally for ETP trading.

A. client
B. joint controlling party
C. owner
D. de jure controlling interest party

Answer: de jure controlling interest party