What light has the same characteristics as a towing light?

The correct answer is that the stern light has the same characteristics as a towing light. A towing light is defined as a white light that is typically located at the stern of a vessel and is visible over the same arc of the horizon as a stern light, which is also a white light.

Both lights serve similar purposes in terms of visibility to other vessels and adhere to maritime navigation rules regarding lighting configuration. When a vessel is engaged in towing, the towing light indicates to other boats that there is a tow, and it serves to enhance the visibility of the vessel's stern, just like a stern light does for any vessel that is anchored or underway.

In contrast, a bow light, deck light, and anchor light each have specific definitions and characteristics that do not align with the function of a towing light. A bow light is typically colored either green or red, depending on the side of the vessel, while a deck light is used for illuminating working areas on a vessel and is not intended for navigation. An anchor light is used to indicate that a vessel is anchored and is typically visible 360 degrees; while it also has its own specific requirements, it does not share characteristics with towing lights in the same way the stern light does.