What is one of the major risks associated with spilled fuel?

Spilled fuel presents a significant fire hazard due to its highly flammable nature. When fuel is exposed to heat sources, sparks, or flames, it can ignite and lead to dangerous fires that not only pose risks to the driver and passengers but also to the surrounding environment and property. Understanding the risks associated with fuel spills is crucial for school bus drivers, as they must be prepared to handle such situations safely and effectively. The other options, while potentially relevant to driving scenarios, do not capture the immediate and severe danger that spilled fuel represents in terms of fire risk.