GMDSS: Element 7

1. A 36#
2. B The digits 00 followed by the country code, the credit card number, the expiration date and ending with the "#" sign.
3. C Credit card billing is impossible via Inmarsat.
4. D The Shore I.D. and "#" sign followed by the digits 00, then the Country Code, subscriber's number and ending with the "#" sign.

Tip: press A-D to answer