Which of the following best describes the full range of services provided by the Inmarsat-C Satellite system?

Correct Answer: Option D — Polling, enhanced group call, one-way position and data reporting via satellite, two-way messaging and data communications on a store-and-forward basis.

Inmarsat-C provides a comprehensive suite of services including two-way store-and-forward messaging, data reporting, and polling. It also supports Enhanced Group Call (EGC) for broadcasting maritime safety information. This combination of features makes it a versatile tool for both routine operations and critical GMDSS distress and safety alerting.