When hoisting personnel from a vessel，with the ship cranes，the crane operator must assure

When hoisting personnel from a vessel，with the ship cranes，the crane operator must assure that ()

A.The personnel carrier remains directly over the vessel

B.All personnel are inside the net type carrier

C.The personnel carrier remains directly over water

D.He does not swing the load until it is above the landing area

请帮忙给出正确答案和分析，谢谢！

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