A vessel may be unable to take proper and effective action due to the speed（）too high or，in some circumstances，too low.

A.with puncture wounds
B.when all other means have failed
C.when the victim is unconscious
D.to prevent bleeding from minor wounds

A.the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B.operation of the release lever until the boat is waterborne
C.the falls from rehooking after they have been released
D.accidental unhooking when the falls become slack

A.be painted bright red
B.be secured to a permanent part of the lifeboat structure
C.have the area surrounding the lever painted white
D.All of the above