Question 344Navigation General

The correct answer is D) All of the above. Under the IALA (International Association of Marine Aids to Navigation and Lighthouse Authorities) Buoyage Systems, a yellow buoy may be used to mark a variety of special areas, including fish net areas, spoil areas, and military exercise zones. The yellow color is used to designate these types of special purpose markers that do not indicate the main navigational channel. The other answer choices (A, B, C) are all correct, as yellow buoys can mark each of those types of areas. There is no single, specific purpose for a yellow buoy, which is why D) All of the above is the most accurate and complete answer.