The outer limit of the Traffic Separation Schemes is（）adjustment as necessary to complywith the port regulations.

A.engaged in fishing in a traffic lane
B.servicing a submarine cable
C.towing another
D.engaged on pilotage duty

A.provide routing and scheduling procedures to reduce shipping delays
B.provide traffic patterns in congested areas，so that vessels can operate without having a separate lookout
C.provide inbound and outbound lanes to promote the safe flow of vessel traffic
D.prohibit vessels carrying hazardous cargoes from entering waters that are environmentally sensitive

A.my entering
B.for my entering
C.for me to enter
D.I am entering