Tour vessel's drafts are: FWD 22'-09", AFT 23'-07"; and the KG is 24.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 18° inclination.

Correct Answer: Option A — 0.7 foot

Entering the stability curves with the calculated mean draft and the provided KG of 24.2 feet allows extraction of the righting arm at 18 degrees inclination as 0.7 foot, in accordance with standard USCG stability reference data.