🔍 Key Concepts
• GMDSS (Global Maritime Distress and Safety System) terminology
• How ships and coast stations are uniquely identified in radio communications
• Difference between general telecom terms and maritime-specific terms
💭 Think About
• Which choice sounds like it is used specifically in the maritime radio context, not in general cell-phone or insurance terminology?
• Think about MMSI (Maritime Mobile Service Identity): what part of that number identifies the country or region, and what might that part be called?
• Look at each option: which one clearly refers to digits used to identify something maritime-related?
✅ Before You Answer
• Eliminate any options that sound like cell phone or insurance industry jargon rather than maritime radio terms
• Focus on the word "Digits" – which option ties those digits directly to maritime identification?
• Remember that MID is used as part of the MMSI number structure; pick the term that would logically fit in that context.