Immediately after abandoning a vessel，lookouts should be posted aboard liferafts to look for（）.

A.separate from each other as this will increase the chances of being rescued
B.get away from the area because sharks will be attracted to the vessel
C.immediately head for the nearest land
D.remain together in the area because rescuers will start searching at the vessel's last known position

A.tell an officer/crew the person's position in the water，or telephone the bridge immediately
B.throw lifebuoys overboard
C.call out "Man overboard" and keep your eyes on the person in the water
D.try to find medicine for the person to use when he is rescued

A.air bottle for breathing
B.whistle and light
C.whistle，light，and reflective tape
D.whistle，light，and sea dye marker