You are underway on course 142°T when you sight a buoy bearing 105°T. The buoy's white light has a characteristic of continuous very-quick flashing. What should you do to ensure that your vessel remains in the best navigable water?
Official USCG Answer & Rule Citation
Correct Answer: Option D — alter course to port and pass north of the buoy
A continuous very-quick flashing white light signifies a North cardinal mark. Safe water is always found to the north of the mark, requiring an alteration of course to port to pass safely clear.
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