What light(s) is fixed to show a light 67.5 degrees from right aft on each side of the vessel?

The correct answer indicates that both the stern light and the towing light are fixed to show a light at 67.5 degrees from right aft on each side of the vessel, which aligns with the regulation requirements for the lighting configuration of certain vessels.

A stern light is required on all power-driven vessels, and it is positioned to illuminate directly astern, which means it provides a light that can be seen from directly behind the vessel up to 67.5 degrees on either side. Similarly, a towing light, which is typically an additional white light mounted above the stern light on a towing vessel, is also designed to project light to the sides of the vessel.

This combination ensures that other vessels can see both the presence of the towing operation and the direction of the power-driven vessel being towed. Such visibility is crucial for navigation safety, particularly in crowded or limited waterways.

Understanding this configuration helps to ensure that vessels are visible under various navigation situations, promoting safety on the water. The other options do not adequately provide the specific arrangements necessary to fulfill the requirements of showing a light at the mentioned angles from the aft.