How far should a driver stop from a school bus when its stop sign is extended?

Answer: C — 20 feet

When a school bus has its stop sign extended, it indicates that children are either boarding or disembarking from the bus. To ensure the safety of these children, drivers must maintain a significant distance from the bus. Stopping at least 20 feet away provides ample space for pedestrians to move safely around the bus and decreases the chance of an accident occurring. This distance allows drivers to have enough visibility and reaction time, keeping the area around the bus clear for children who may not be fully aware of their surroundings. Additionally, many jurisdictions have laws that specify this distance to promote safety when it comes to school buses, reinforcing the expectation that drivers must take extra precautions in such scenarios.