BOTH INTERNATIONAL & INLAND You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be __________.

Correct Answer: Option C — towing a tow more than 200 meters astern

Under Inland Navigation Rules, for the condition where 'You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be', the correct requirement is: 'towing a tow more than 200 meters astern'. This standard ensures clear navigational intent and collision avoidance.