BOTH INTERNATIONAL & INLAND All fog signals shall be sounded every two minutes with the exception of which vessels?

Correct Answer: Option C — Vessels anchored or aground

Rule 35(g) dictates that vessels at anchor or aground are required to sound their fog signals at intervals of not more than one minute, rather than the two-minute interval required for vessels underway. This increased frequency provides better warning to other vessels navigating in restricted visibility.