Which system may be useful for messages, such as local storm warnings or a shore-to-ship distress alert, for which it is inappropriate to alert all ships in the satellite coverage area?

Correct Answer: Option D — EGC

Enhanced Group Calling (EGC), a component of the GMDSS, allows for the transmission of safety information to specific geographic areas or vessel types. Unlike general broadcasts, EGC enables targeted messaging for storm warnings or distress alerts without alerting all ships in the entire satellite coverage area.