Your vessel's drafts are: FWD 22'-04", AFT 22'-10"; and the KG is 18.4 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 30° inclination.

Correct Answer: Option D — 4.6 feet

Entering the blue page stability curves with the calculated mean draft and the 18.4 feet KG yields an interpolated righting arm value of 4.6 feet at a 30-degree angle of inclination.