You are loading cargo on deck aboard a vessel whose beam is 60 feet and full period of roll is 20 seconds. What is the estimated metacentric height of the vessel?

Correct Answer: Option C — 1.7 ft

Transverse stability calculation utilizing GM = (f * B / T)^2 with a 60-foot beam and a 20-second roll period yields an estimated metacentric height of 1.7 ft using standard naval architectural constants.