BOTH INTERNATIONAL & INLAND Which vessel would show 3 day-shapes in a vertical line, the highest and lowest being balls and the middle shape being a diamond?

Under Inland Navigation Rules, for the condition where 'Which vessel would show 3 day-shapes in a vertical line, the highest and lowest being balls and the middle shape being a diamond', the correct requirement is: 'Vessel restricted in her ability to maneuver'. This standard ensures clear navigational intent and collision avoidance.