What should a bus driver do if the brake warning light comes on while driving?

Answer: B — Pull over safely and inspect the braking system

When the brake warning light comes on while driving, it indicates a potential issue with the braking system, which is critical for the safety of the driver, passengers, and others on the road. The correct action is to pull over safely and inspect the braking system. This ensures that the driver can evaluate the situation without endangering themselves or others. By safely pulling over, the driver can assess whether it is safe to continue driving or if immediate action is required to address the problem. Ignoring the warning light can lead to brake failure, which poses a serious risk. Similarly, driving to the nearest service station without first assessing the vehicle's condition could be hazardous, as it might lead to an emergency situation if the brakes fail while on the road. Turning off the engine immediately is also not advisable, as it could cause a loss of power steering and brake assist, making it difficult to control the vehicle, especially in a moving situation. Taking the prudent step to pull over allows the driver to prioritize safety and make informed decisions regarding further steps based on the condition of the braking system.