You are advised to enter the traffic route at about 1730 hours，because a vessel is scheduled to enter at the time when you intended to enter.What can you understand from this seaspeak?（）.

A. It's a warning of navigation for my vessel
B. It's an advice from Port Control to order my vessel not enter the traffic route of the harbor
C. It's an advice to change my estimated time of entering the traffic route
D. It's an order from the VTS to indicate my vessel to follow the traffic route