67I1 C
 Which statement concerning Inmarsat-B and Inmarsat-C terminals is correct?
A. Both Inmarsat-B and Inmarsat-C units are capable of fax and voice communications.
B. Inmarsat-B units are not capable of data communications, but Inmarsat-C units are capable of data communications.
C. Both Inmarsat-B and Inmarsat-C units can send data as well as send messages to fax machines.
D. None of these answers is correct.
