BOTH INTERNATIONAL & INLAND Which vessel shall NOT impede the passage of a vessel which can safely navigate only within a narrow channel or fairway?

Correct Answer: Option D — All of the above

Under Inland Navigation Rules, for the condition where 'Which vessel shall NOT impede the passage of a vessel which can safely navigate only within a narrow channel or fairway', the correct requirement is: 'All of the above'. This standard ensures clear navigational intent and collision avoidance.