The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．A.VHFB.SARTC.NAVTEXD.LES
The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．
A.VHF
B.SART
C.NAVTEX
D.LES
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