What type of fire can be extinguished safely?

The correct response emphasizes the significance of a clear escape route when addressing a fire situation. A fire that has a clear escape route allows an individual to attempt an extinguishment with a plan for swift evacuation if necessary. This situational awareness is essential for safety; should the attempt to extinguish the fire become dangerous, the individual can exit the area quickly and without hesitation.

When considering the other options, a large, spreading fire typically presents an increasing risk, as it may quickly overwhelm a person's ability to manage it. A fire in a confined space can lead to rapid escalation and may not allow for proper ventilation, making it inherently dangerous to approach. Similarly, a fire with heavy smoke and gas buildup poses substantial inhalation and visibility risks, contributing to a hazardous environment that could trap a person if the situation worsens.

Thus, a fire with a clear escape route is the most viable and safest scenario for attempting to extinguish a fire, aligning with critical safety protocols in fire management.