Question 988 Rules of the Road

The correct answer is B) One prolonged and two short blasts at two minute intervals. This is the correct answer because, according to the International and Inland Navigation Rules, a sailing vessel proceeding under sail when making way, but stopped and not making way, should sound one prolonged blast followed by two short blasts at intervals of not more than two minutes. The other options are incorrect because they do not match the required fog signal for a sailing vessel underway but not making way, as specified in the navigation rules.