Frequencies for receiving HF MSI (Maritime Safety Information) are:

The correct response highlights that the frequencies designated for receiving HF MSI (Maritime Safety Information) messages are specifically the HF SITOR (NBDP) frequencies. SITOR, which stands for Simplex Telex over Radio, is a method of sending digital data over radio frequencies and is specifically used for maritime communications, including the transmission of MSI.

These frequencies have been allocated for the exchange of navigational and safety information, ensuring that ships are able to receive critical updates such as weather alerts, navigational warnings, and other essential maritime safety messages. It is important to use these designated frequencies to ensure clarity and reliability in communication.

The other options involve different types of communication protocols or frequencies. NAVTEX operates on dedicated frequencies for broadcasting MSI directly to ships, mainly in HF bands, but not exclusively the same as those specified for SITOR. Additionally, frequencies used for contacting a Coast Radio Station using FEC (Frequent Error Correction) might not align with the specific parameters set for MSI transmission, and specified HF voice frequencies are not a dedicated channel for MSI messages like the HF SITOR frequencies are. Thus, option D accurately reflects the standardized frequencies set aside for MSI communication.