What is the purpose of the "Mayday" call format, and roughly what information should it include?

A. Mayday is only used for reporting minor equipment faults, not genuine emergencies

B. "Mayday" (repeated three times) signals a genuine life-threatening emergency and should be followed by the vessel's identity, position, the nature of the emergency, and the number of people on board — a clear, standard format that lets anyone hearing it, including other crew, pass it on correctly if needed

C. Mayday calls should never include the vessel's position, to avoid revealing the vessel's location

D. Only the skipper is ever permitted to know the Mayday call format

A. Port and starboard change depending on which way the boat is facing

B. Port is the left-hand side and starboard is the right-hand side of the boat, when facing forward (toward the bow) — these terms are fixed to the boat itself, not to the direction you happen to be looking

C. Port refers to the front of the boat and starboard refers to the back

D. These terms are only used on larger commercial vessels, never on small craft

A. Always move as quickly as possible regardless of conditions

B. Keep one hand for yourself and one for the boat — maintain a secure handhold wherever practical, and move deliberately rather than rushing, especially in any kind of sea state

C. It doesn't matter how you move around, as long as you get where you need to be

D. Only the skipper needs to think about safe movement around the boat