BOTH INTERNATIONAL & INLAND Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another?

Correct Answer: Option C — Neither vessel is the stand-on vessel.

Under Inland Navigation Rules, for the condition where 'Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another', the correct requirement is: 'Neither vessel is the stand-on vessel.'. This standard ensures clear navigational intent and collision avoidance.