The SS AMERICAN MARINER is ready to bunker with drafts of FWD 21'-04", AFT 26'-04". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0177 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Correct Answer: Option A — 0.62 foot

Free surface correction is essential for maintaining positive GM. Based on the ST-0177 table, the total free surface moments for the slack tanks divided by the displacement at the given draft results in a correction of 0.62 feet, ensuring the vessel maintains required stability margins per 46 CFR.