What is the role of mirrors on a school bus?

Mirrors on a school bus play a critical role in ensuring the safety of the bus and its passengers by providing a comprehensive view of the vehicle's surroundings. The primary function of the mirrors is to allow the driver to see areas that are not visible directly through the front windshield or side windows. This includes blind spots to the side and behind the bus, which are crucial for safe maneuvering, especially when the bus is picking up or dropping off children.

The mirrors also help the driver to monitor the proximity of other vehicles, pedestrians, and potential hazards. By having a clear view of the surroundings, the driver can make informed decisions, responding swiftly to any situation that may arise. This is particularly important in maintaining the safety of schoolchildren who may be near the bus.

The other options do not align with the primary function of mirrors on a school bus. While reducing fuel consumption and monitoring engine temperature may be relevant for overall vehicle maintenance, they are not roles attributed to the mirrors. Aesthetic appeal is also not a practical reason for the inclusion of mirrors on a school bus. Thus, the correct choice emphasizes the safety and operational functionality that mirrors provide.