All entries in logbook, _________ made, must not be erased or amende

Which（）need NOT be entered in the Official Logbook? A: The testing of the internal combustion engine driven emergency generators at least once each month the vessel is navigated B: The testing of storage batteries for emergency lighting and power systems once each 6 months the vessel is navigated C: The actual draft when the vessel arrives in salt water after departing a port D: The testing of the line-throwing appliance once every 3 month

（）of the following need not be entered in the official logbook? A: The testing of the internal combustion engine driven emergency generator at least once each month the vessel is navigated B: The testing of storage betteries for emergency lighting and systems once each 6 months the vessels is navigated C: The actual draft when the vessel arrives in salt water after department a port D: The testing of the line-throwing appliance once every 3 month