Explanation: SafetyNET is an international broadcast service for Maritime Safety Information (MSI) via Inmarsat-C satellite. Its satellite-based nature means it does not rely on terrestrial infrastructure, making it ideal for providing automated safety broadcasts in remote coastal areas or regions with low shipping density where establishing local NAVTEX transmitters would be unfeasible or uneconomical. As a component of the Global Maritime Distress and Safety System (GMDSS), SafetyNET ensures critical weather warnings, navigation warnings, and other urgent information reach ships globally, independent of local ground stations. VHF DSC (B) is a terrestrial, short-range system, limited to line-of-sight propagation, requiring local infrastructure. AMVER (A) is a voluntary ship reporting system for search and rescue, not an automated broadcast service for general safety information. ARQ SITOR (NBDP) (C) is a digital text communication mode (used by NAVTEX itself), but it's not the designated *service* that provides global, automated MSI specifically for areas lacking terrestrial infrastructure.