Question 19D4

For a distress follow-on voice transmission, international radio regulations and standard operating procedures dictate the use of the specific distress signal. Option B is correct because: * **"Mayday"** is the internationally recognized distress signal, indicating grave and imminent danger requiring immediate assistance. Repeating it three times (Mayday, Mayday, Mayday) ensures it's clearly heard and understood as a distress call, not a casual word. * Repeating **"this is [Ship's Name/Call Sign]"** three times is crucial for clarity and positive identification, especially under stress, in poor radio conditions, or when others are trying to copy the information. * Following with **position, nature of distress, and assistance requested** provides the essential information for rescuers. Options A and D are incorrect because "All Ships" or "All Stations" are general calls, not the specific distress signal "Mayday," which is reserved for situations of grave and imminent danger. Option C is incorrect because repeating the ship's identification only once significantly reduces the chance of it being correctly received, which is critical in a distress situation.