单项选择题

A.A vessel on the starboard bow whose bearing is changi……

Which of the following radar contacts will present the most immediate danger?（）.

A.A vessel on the starboard bow whose bearing is changing and range is decreasing
B.A vessel on the starboard bow whose bearing is steady and range is increasing
C.A vessel on the port bow whose bearing is steady and range is decreasing
D.A vessel on the port bow whose bearing is changing to the left and range decreasing

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A.trouble
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C.wrong
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