What is located at the stern of the vessel?

The all-round white light is correctly associated with the stern of the vessel because it serves as an important navigational aid indicating the presence and type of vessel to other mariners. The all-round white light is typically mounted at the stern and is visible from all directions, helping to ensure the safety of the vessel during nighttime or low-visibility conditions.

An all-round white light indicates a vessel that is either at anchor or under way, and its placement at the stern allows for a larger range of visibility. This is crucial for avoiding collisions and maintaining situational awareness on the water. By ensuring that the light is properly positioned at the stern, the vessel can signal its location effectively to others, which is particularly vital in crowded waterways.

In contrast, other items such as the anchor, navigation lights (red and green, which are typically located at the bow), and ramps may serve various functions but do not specifically denote an important navigational aspect at the stern of the vessel.