BOTH INTERNATIONAL & INLAND An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 100 meters, shall show __________.

Correct Answer: Option C — a diamond shape

Under Inland Navigation Rules, for the condition where 'An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 100 meters, shall show', the correct requirement is: 'a diamond shape'. This standard ensures clear navigational intent and collision avoidance.