What is a key reason to confirm the fuel system integrity during a pre-trip inspection?

Confirming the fuel system integrity during a pre-trip inspection is crucial to prevent fuel leaks that could trigger hazards. Fuel leaks can significantly increase the risk of fire or explosion, posing serious safety threats to both the driver and passengers, as well as to other road users. Ensuring that the fuel system is intact means checking for any signs of wear, cracks, or damage that could lead to leaks. By addressing these potential issues before the bus hits the road, drivers can maintain a safer transit environment and comply with safety regulations. The other options, while relevant to different aspects of bus operation, do not address the immediate safety concerns that a compromised fuel system can pose.