单选题In order for a stand-on vessel to take action in a situation，she must determine that the other vessel（）.AIs restricted in her ability to maneuverBHas sounded the danger signalCIs not taking appropriate actionDHas not changed course since risk of collision was determined
单选题
In order for a stand-on vessel to take action in a situation，she must determine that the other vessel（）.
A
Is restricted in her ability to maneuver
B
Has sounded the danger signal
C
Is not taking appropriate action
D
Has not changed course since risk of collision was determined
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