What does the keel of a vessel primarily enhance?

The keel of a vessel primarily enhances stability in the water. It is a crucial component, typically running along the bottom of the hull, that serves to counteract the lateral forces acting on the boat when it is in motion, especially in challenging conditions such as rough waters or strong winds. By providing a lower center of gravity and increasing the righting moment, the keel helps prevent the vessel from capsizing, allowing for smoother navigation and improved control.

While the keel does have a role in structural support and can impact speed to some degree, its main function is to ensure the vessel remains upright and stable. The other options, such as enhancing speed or providing storage capacity, are not primary functions of the keel.