Loading cargo above the vessel's center of gravity will increase the vessel's vertical center of gravity. How will this affect the vessel?

Correct Answer: Option C — if your vessel's stability is decreasing, the roll period will increase

Loading cargo above the center of gravity reduces the metacentric height (GM), thereby decreasing initial stability. A lower GM results in a less stiff vessel with a slower righting response, which directly causes the rolling period to increase, leading to a sluggish, tender motion in a seaway.