The proper way to correct a mistake in the logbook is to（）.

A.erase the entry and rewrite
B.draw several lines through the entry，rewrite，and initial the correction
C.completely black out the entry，rewrite，and initial the correction
D.draw one line through the entry，rewrite，and initial the correction

A.the names of all persons on board
B.only the names of the crew members on board
C.only the names of passengers on board
D.information on emergency training drills

A.log the density of the water
B.secure all overboard discharges
C.take on fresh water ballast
D.clean the sides with fresh water