What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert（）.
- AIt will abort the transmission and set off an audible alarm that must be manually reset
- BIt will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation
- CIt will initiate the DSC distress alert and default information will automatically be transmitted
- DIt will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situatio