Explanation: A successful radio station survey for a vessel, particularly one mandated by the GMDSS (Global Maritime Distress and Safety System) and SOLAS (Safety of Life at Sea) convention, confirms that the radio equipment meets all international and national safety standards. This survey is a crucial component for the vessel to be issued or to renew its **Cargo Ship Safety Radio Certificate** (or Passenger Ship Safety Certificate for passenger vessels). This certificate, often consolidated into a broader **Cargo Ship Safety Certificate**, attests to the vessel's compliance with safety regulations, including those for radio communications. * **A) FCC 817** is an FCC form used to *apply* for a vessel radio station license, not a certificate issued after a survey. * **B) SOLAS Annual Certificate** is not the specific document issued; SOLAS mandates the surveys and the specific certificates (like the Radio Certificate) which are endorsed or renewed annually. * **C) Radio Station License** is an administrative document permitting station operation, issued by the FCC (or relevant national authority), and generally valid for a longer period (e.g., 10 years). While the survey verifies compliance, the license itself isn't issued *after* each survey.