The SS AMERICAN MARINER is ready to sail with the load shown in table ST-0121 below. Use the white pages of The Stability Data Reference Book to determine the available GM.

Correct Answer: Option C — Available GM 3.98 ft

Determining the true vertical center of gravity for table ST-0121 via hydrostatic tables produces an available metacentric height (GM) of 3.98 feet, ensuring adequate initial stability prior to getting underway.