What is the recovery position used for in first aid?

The recovery position is specifically designed to keep an unconscious but breathing person safe. This position helps maintain an open airway, allowing the individual to breathe freely while minimizing the risk of choking on any fluids or vomit. Additionally, it helps prevent the tongue from obstructing the airway, which is crucial in an emergency situation. By placing the person on their side in this position, it also allows for easy monitoring of their condition and gives responders the ability to effectively provide further aid if necessary.

In contrast, the other choices do not accurately reflect the primary purpose of the recovery position. Heat stroke management involves cooling the individual, treating injuries requires specific immobilization techniques, and hydration assistance is not related to positioning in cases of unconsciousness. Therefore, understanding the recovery position's role in first aid is vital for ensuring the safety and well-being of someone who is unresponsive yet breathing.