What should be the position of the person receiving rescue breaths?

The correct position for a person receiving rescue breaths is on their back. This position allows for optimal airway management, as it enables the rescuer to effectively open the airway by tilting the person's head back slightly. When someone is lying on their back, the position also facilitates the necessary seal around the mouth when delivering breaths, ensuring that air can be delivered effectively into the lungs.

In addition, being on their back minimizes the risk of aspiration, which can occur if the person has any fluids or vomit in their mouth. Proper airway positioning enhances the efficiency of rescue breaths, making it easier for the rescuer to administer them correctly and ensure that oxygen reaches the person's lungs.