83J4 B
 The proper sequence of channel spacing from narrow to widest is:
A. SSB voice, SITOR (NBDP), VHF-FM voice.
B. SITOR (NBDP), SSB-voice, VHF-FM voice.
C. VHF-FM voice, SITOR (NBDP), SSB-voice.
D. SITOR (NBDP), VHF-FM voice, SSB-voice.
