Which method is NOT used for towing a victim to safety?

The most appropriate answer here involves understanding the traditional methods used for towing a victim to safety in rescue scenarios. A cross chest carry is primarily a technique for moving an unconscious or injured person on land and does not facilitate towing in water or differing terrains. This technique allows a rescuer to support the victim's upper body while moving on foot, rather than utilizing a method that actively tows the victim.

In contrast, the use of a rescue ring, backboard transport, and a towline are recognized methods specifically designed to safely move victims, especially in aquatic environments. A rescue ring allows a victim to be secured and towed through water, while backboards are useful for stabilizing an injured person for transport, often in combination with towing mechanisms. The towline provides a direct method to pull a victim to safety by securing them and allowing for movement without necessitating physical contact or lifting.

Consequently, the cross chest carry does not align with the criteria for towing a victim and makes it the method that is not typically used in such situations.