BOTH INTERNATIONAL & INLAND A tug is towing three manned barges in line in fog. The second vessel of the tow should sound which signal?

Correct Answer: Option C — No fog signal

Rule 35(c) stipulates that fog signals for a tow are restricted to the towing vessel and the last manned vessel. Intermediate vessels, even if manned, are not required to sound any fog signal. This prevents acoustic confusion and ensures the tow's length is clearly defined by the terminal signals.