Final answer:
The highest priority of first responders during an incident response is to rescue and provide immediate medical assistance to injured individuals.
Step-by-step explanation:
The highest priority of first responders during an incident response is to rescue and provide immediate medical assistance to injured individuals. First responders, such as firefighters, prioritize locating and rescuing victims from burning buildings, accident sites, or water hazards. They dress with appropriate safety equipment and administer first aid and cardiopulmonary resuscitation (CPR) to injured persons.