What is one key safety feature of a school bus that differentiates it from other vehicles?

Answer: C — Flashing red lights and stop sign

One key safety feature of a school bus that differentiates it from other vehicles is the flashing red lights and stop sign. These features are specifically designed to enhance the safety of school children during loading and unloading procedures. When the school bus is stopped and the lights are flashing, other drivers are required by law to stop their vehicles. This creates a safe zone for children to enter and exit the bus without the risk of being struck by oncoming traffic. The stop sign attached to the bus extends outward to further alert drivers of the need to stop and maintain a safe distance. This system is a critical aspect of school bus safety protocols and helps ensure that children can safely transition to and from school.