The correct answer is C) have more resistance to listing in case of damage. A vessel with a large GM (metacentric height) will have a greater righting moment, meaning it will have more resistance to listing or capsizing in case of damage or flooding. This is because a larger GM provides more stability and the ability to right the vessel if it starts to list. The other answer choices are incorrect because: A) a large GM does not directly affect cargo shifting, B) a large GM can actually increase the tendency for synchronous rolling, and D) a large GM does not necessarily result in a more comfortable ride, as that is more influenced by the vessel's motion characteristics.