Paul, CFA, heads the research department of a large brokerage firm. Paul has supervisory responsibility over 25 analysts. If Paul delegates some supervisory duties, which statement best describes his responsibilities based on the Standards of Professional Conduct（）
A. Paul is not responsible for those duties he has delegated to his subordinates.
B. Paul’s supervisory responsibilities only apply to analysts with the CFA designation.
C. Paul retains supervisory responsibility for all subordinates despite his delegation of some duties.