BOTH INTERNATIONAL & INLAND A vessel, which is unable to maneuver due to some exceptional circumstance, shall exhibit __________.

Correct Answer: Option C — when making way at night, two all-round red lights, sidelights, and a stern light

Under Inland Navigation Rules, for the condition where 'A vessel, which is unable to maneuver due to some exceptional circumstance, shall exhibit', the correct requirement is: 'when making way at night, two all-round red lights, sidelights, and a stern light'. This standard ensures clear navigational intent and collision avoidance.