What messages originate from registered information providers anywhere in the world and are broadcast to the appropriate ocean region via a CES?

Correct Answer: Option A — SafetyNETTM messages

SafetyNET is the international service for broadcasting MSI via the Inmarsat EGC system. Information providers, such as meteorological offices or rescue coordination centers, send data to a Coast Earth Station (CES), which then broadcasts the information to the appropriate ocean region for reception by all GMDSS-compliant vessels.