What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when iniating a DSC distress alert?

A
It will abort the transmission and set off an audible alarm that must be manually reset.
B
It will iniate the DSC distress alert but, as no information will be transmitted, rescue personnel will not be able to identify the vessel, its position or is situation.
C
It will initiate the DSC distress alert and default information will automatically be transmitted.
D
Ir 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 situation.
E