079D C
 Which statement regarding GMDSS MF/HF Transceiver frequency set-up is true:
a) Transmit and receive frequencies must always be manually entered from the keypad.
b) Transmit and receive frequencies must always be recalled from a database or memory. 
c) Some consoles allow both manual keypad entry and ITU channel recall from a database or memory, while others do not.
d) None of the above
