BOTH INTERNATIONAL & INLAND Which vessel must exhibit three white masthead lights in a vertical line?

Correct Answer: Option B — A vessel whose tow exceeds 200 meters astern

Under Inland Navigation Rules, for the condition where 'Which vessel must exhibit three white masthead lights in a vertical line', the correct requirement is: 'A vessel whose tow exceeds 200 meters astern'. This standard ensures clear navigational intent and collision avoidance.