BOTH INTERNATIONAL & INLAND When action to avoid a close-quarters situation is taken, a course change alone may be the most effective action provided that __________.

Correct Answer: Option A — it is a large course change

Rule 8(b) dictates that any alteration of course or speed to avoid collision must be large enough to be readily apparent to another vessel observing visually or by radar. A succession of small alterations should be avoided, as they are often ambiguous and fail to communicate clear intent.