What should the right and left outside flat mirrors show the driver?

Answer: D — All of the above

The right and left outside flat mirrors are designed to provide the driver with a comprehensive view around the school bus, enhancing safety and awareness of surrounding conditions. Each of the options contributes to this goal: The mirrors should ideally show the space behind the bus, which includes a significant distance of approximately 200 feet or four bus lengths. This enables the driver to monitor vehicles and pedestrians approaching from behind, crucial for safety during maneuvers such as backing up or merging. The mirrors also help in displaying the along-the-side view of the bus. This is essential for the driver to be aware of any obstacles, cyclists, or pedestrians that may be alongside the bus and potentially in the way. In addition to these views, the mirrors should help the driver see the rear tires touching the ground. This allows drivers to confirm that their vehicle is safely positioned on the road and helps in evaluating clearance from curbs or other roadside obstacles. Collectively, these elements ensure that the driver has a well-rounded view of their surroundings, making it vital for safety while operating the school bus. Therefore, the comprehensive nature of the driver's view from the outside flat mirrors justifies that all the mentioned aspects are correct.