Which determines whether a NAVTEX receiver does not print a particular type of message content?

Correct Answer: Option D — Both answers a) and b).

NAVTEX receivers automatically reject messages based on two criteria: the B1 character (station ID) and the B2 character (subject indicator). If the operator has programmed the unit to ignore specific stations or message types, the receiver will suppress printing to prevent clutter, as defined in IMO NAVTEX performance standards.