When a feature remains in its existing charted position but has a change of characteristic,（）command is used on a chart.

A.be initiative
B.be positive
C.be negative
D.be positively

A.Anti-seasickness medicine
B.Immersion suits
C.Axes
D.Lifebuoys

A.The person who has done the planning
B.The master
C.The navigation officer
D.The owner