Final answer:
After selecting an extinguisher, a firefighter should assess the size and type of fire, which is crucial for safety and effective firefighting.
Step-by-step explanation:
After selecting the appropriate extinguisher to use on a fire, the firefighter should c) assess the size and type of fire. This step is crucial before attempting to extinguish a fire, as firefighters must make calculated decisions based on the condition of the fire. They control and extinguish municipal fires, ensure public safety, and must rescue victims from various emergencies. Firefighters are trained to administer first aid and other life-saving procedures as needed. The ability to assess fires and situations correctly is a vital skill that contributes to their life-saving responsibilities.