Which of the following statements concerning MMSI is true?

Correct Answer: Option C — All Coast Station MMSI must be 9 digits and begin with 2 zeros followed by the MID.

ITU and FCC standards dictate that Coast Station MMSI numbers are precisely 9 digits long, beginning with two zeros followed by the 3-digit Maritime Identification Digit (MID) and four subscriber digits, ensuring selective calling recognition within maritime distress systems.