单选题The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that（）.Arisk of collision existsBthe other vessel will cross ahead of herCthe other vessel is not taking appropriate actionDcollision cannot be avoided by the give-way vessel's maneuver alone
单选题
The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that（）.
A
risk of collision exists
B
the other vessel will cross ahead of her
C
the other vessel is not taking appropriate action
D
collision cannot be avoided by the give-way vessel's maneuver alone
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