Final answer:
A driver must typically stop at least 20 to 25 feet away from a stopped school bus with flashing red lights and stop arm extended, though this can vary by jurisdiction.
Step-by-step explanation:
The question pertains to the distance drivers must maintain from a stopped school bus with its flashing red lights on and stop arm extended.
Laws vary by jurisdiction, but a common rule is that drivers must stop at least 20 to 25 feet away from the bus to ensure the safety of entering or exiting children. It is critical to check local traffic laws as they can differ by state or country. Factors like visibility, road type, and speed limits can also affect the required stopping distance.