What is incorrect about trading options on the SEHK?

A、Onlytheoptiontradingexchangeparticipantswhohavetherighttoconnectthesystemcanconnecttheoptionsystem.
B、Optionsbrokerageexchangeparticipantsmayhaveaccesstothesystem
C、Anoptionsbrokerageexchangeparticipantshallhavetherighttoenterintoanoptionsbrokerageclientcontractwithanoptionstradingexchangeparticipantbyactingasprincipal;andEnterintocorrespondingcustomercontractswithcustomers
D、OptionsTradingExchangeParticipantsenterordersorquotesforautomaticordermatchingthroughHKATS.