You receive a Mayday on Ch 16 from a vessel 8 miles away. You are the only vessel to respond. What are your obligations?

A. Acknowledge the Mayday, then wait for RNLI to arrive before proceeding

B. Relay the Mayday only — you are not obligated to proceed to the casualty

C. Acknowledge the Mayday on Ch 16; proceed to the casualty's position at best speed; maintain radio watch on Ch 16; advise the Coastguard of your ETA; assist within the limits of safety to your own vessel and crew

D. Only the Coastguard and RNLI are obligated to respond — leisure yachts should not approach distress situations

A. To operate the radar system remotely

B. To broadcast weather forecasts to other vessels

C. To make telephone calls from the vessel to shore

D. To send a digitally coded distress alert containing the vessel's MMSI and position automatically to all DSC-equipped stations and the Coastguard

A. Maritime Mobile Service Identity — a unique 9-digit number identifying the vessel; without it a DSC distress alert cannot identify the vessel to rescuers

B. A GPS waypoint identifier used in coastal navigation

C. A VHF channel number allocated by Ofcom for distress use only

D. A vessel survey certificate number required by the MCA