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

The correct answer emphasizes the function of right and left outside flat mirrors in providing the bus driver with a broader view of the area surrounding the vehicle. These mirrors are specifically designed to allow drivers to see significant distances behind the bus—up to 200 feet or about four bus lengths. This extended visibility is crucial for ensuring the safety of the students boarding or alighting the bus and for monitoring surrounding traffic conditions.

Being able to see 200 feet behind the bus helps the driver make informed decisions when reversing or merging, as they can identify potential hazards that may not be visible in the regular rearview mirror. This distance also aids in ensuring that there is enough space for other vehicles to pass safely when the bus is stopped to pick up or drop off students.

In contrast, the other choices are limited in scope or inaccurate regarding what the outside mirrors are intended to display. They do not accurately reflect the operational intent of the mirrors to ensure comprehensive visibility and safety.