Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; and the KG is 21.3 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 15° inclination.

Correct Answer: Option C — 1.5 feet

Evaluating the blue pages stability curves with drafts of 27'-06" forward, 28'-02" aft, and a KG of 21.3 feet requires accounting for free surface and displacement changes. Locating the intersection at a 15-degree angle of inclination on the correct curve yields a righting arm of 1.5 feet.