7-88J6 A
 "SITOR (NBDP)" communications are based on a digital code system:
A. Consisting of 7 bits, with four zeros and three ones.
B. Consisting of 7 bits, with four ones and three zeroes.
C. Consisting of 5 bits TELEX and 8 bits Fax.
D. Consisting of 5 bits for ship stations and 7 bits for shore stations.
