The responsibility for maintaining the Official Logbook on voyages between the Atlantic and Pacific coasts of the United States rests with the __________.

Correct Answer: Option C — Master of the vessel

The Master of the vessel holds the ultimate legal responsibility for the maintenance and accuracy of the Official Logbook under 46 U.S.C. § 11301. While the Master may delegate the physical writing of entries to other officers, the Master remains accountable for ensuring all required information is correctly recorded.