28D5 D
 Which of the following are the MF/HF DSC Distress watch frequencies?
A. 2177.5, 4210.0, 6314.0, 8416.5 12579.0, 16806.5.
B. 2182.0, 4125.0, 6215.0, 8291.0, 12290.0, 16420.0.
C. 2174.5, 4177.5, 6268.0, 8376.5, 12520.0, 16695.0.
D. 2187.5, 4207.5, 6312.0, 8414.5, 12577.0, 16804.5.
