Which of the following numbers is appropriate for an Inmarsat-B terminal placing a TELEX call via Southbury to another ship logged-in to the AOR-E?

Correct Answer: Option B — 001+ 00581436824246+

To call a ship in the AOR-E (581) via Southbury (001), the operator dials the access code 001+, followed by the ocean region code 581 and the vessel's unique Inmarsat number. The + sign serves as the required terminator for the TELEX dialing sequence in the Inmarsat-B system.