Final answer:
True, the east cardinal buoy indicates that the safest water is to the east of the buoy, as per standard international maritime navigation protocols.
Step-by-step explanation:
The statement Cardinal Buoy East: Indicates that the safest water is to the east is True. Cardinal buoys are a system of buoys used to indicate the location of safe water. The east cardinal buoy specifically indicates that the safest water lies to the east of the buoy. Mariners use this and other cardinal buoys to navigate safely and avoid hazards when close to shore or in uncertain waters. Cardinal buoys are part of the IALA (International Association of Marine Aids to Navigation and Lighthouse Authorities) buoyage system, which is used internationally to ensure standardized navigation aids.