| Upon receipt of SafetyNETTM messages of the Distress or Urgency category on the ship's EGC receiver, what action is required by the GMDSS Radio Operator? |
| A) No immediate action is required as an audible tone will be generated at the beginning and end of the transmission and a paper printout of the message will be generated. |
| B) Manually reset the alarm. |
| C) No immediate action is required by the operator since the transmission will be automatically acknowledged by the receiving vessel. |
| D) A periodic alarm tone will be heard until the radio operator prints the message from the unit's memory. |
