Which of the following is an example of an unauthorized insurance company in Illinois?

A. Company B, an Iowa-based company that does not hold a certificate of authority in Illinois and sells products that are not approved by the Illinois insurance department

B. Company D, a Canadian company that holds a certificate of authority in Illinois

C. Company C, a Florida-based company that does not hold a certificate of authority Illinois but whose products are approved by the Illinois insurance department

D. Company A, an Illinois-based company that holds a certificate of authority in Illinois and 32 other states