When returning from sea in US waters, on which side of your vessel do you keep a nun buoy?

A. Port side
B. Either side, depending on the channel
✓ Starboard sideCorrect
D. Dead ahead until past the buoy

Why C is correct

A nun buoy is a conical, red, even-numbered aid. Under IALA-B, nun buoys are kept on the starboard side when returning from sea, consistent with 'red right returning.'

Cited:Light List — Nun Buoy Bowditch Ch. 5 §501

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When returning from sea in US waters, on which side of your vessel… — USCG Exam Practice · CaptainsGround