70I3 B
 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?
A. 001+   00584436824246+
B. 001+   00581436824246+
C. 002+   00584436824246+ 
D. 013+   00581436824246+
