63I3 A
 The Inmarsat telephone and TELEX communications channel usage scheme is:
A. One ship per telephone channel and many ships per TELEX channel.
B. Many ships on the same TELEX analog channel and many ships on the same TDM telephone channel.
C. One ship per analog telephone channel and one ship per TELEX analog channel frequency. 
D. One ship per channel whether telephone or TELEX.
