GMDSS-equipped ships will be required to perform which of the following communications functions?

Correct Answer: Option D — All of these

GMDSS-equipped ships are required to support a comprehensive suite of communications, including distress alerting, MSI reception, SAR coordination, on-scene communications, and general bridge-to-bridge traffic. These integrated functions ensure that vessels can effectively communicate during routine operations and critical distress situations, meeting all international safety standards for commercial shipping.