The SS AMERICAN MARINER is ready to sail with the load shown in table ST-0186 below. Use the white pages of The Stability Data Reference Book to determine the available GM.

Correct Answer: Option A — Available GM 4.1 ft

Evaluating loading condition ST-0186 requires utilizing structural deadweight and moment data from the vessel's stability manual. Factoring in cargo distribution and free surface corrections determines the effective vertical center of gravity, resulting in an available GM of 4.1 feet.