Which of the following would indicate an Inmarsat-C terminal?

The correct answer indicates an Inmarsat-C terminal based on the specific number format that is used for identifying such terminals. Inmarsat-C terminals typically follow a specific numbering convention that helps in uniquely identifying the satellite communication device.

The identification number format for an Inmarsat-C terminal usually consists of 9 digits, often with specific patterns indicating the type of service or region. In this case, the number "436682433" fits the criteria established for Inmarsat-C terminals, reflecting the proper structure and length that is characteristic of this particular satellite service.

In contrast, the other numbers do not conform to the Inmarsat-C terminal numbering scheme, either by lacking the required digit count or by not aligning with the expected patterns that are associated with Inmarsat services. This makes the identification of an Inmarsat-C terminal strictly reliant on recognizing these specific numeric patterns and formats. Therefore, the chosen number effectively exemplifies the identifier for an Inmarsat-C terminal.