Under what condition is it permissible to not stop for a school bus?

The correct response indicates that it is permissible to not stop for a school bus when the bus is on a highway divided by a median. This is because many highways are designed with a physical barrier, such as a median or divider, that separates the two directions of traffic. In such cases, vehicles traveling in the opposite direction of the bus are not required to stop. This regulation is intended to improve traffic flow while still ensuring the safety of school children getting on or off the bus on the side where the bus is located.

Additionally, the other scenarios presented do not provide legal exemptions for stopping. For example, when traveling in the same direction as the bus, stopping is required to protect children as they enter or exit the bus. Similarly, if a bus is on a one-way street or has its stop sign arm extended, all vehicles must stop regardless of their direction. These rules are in place to prioritize the safety of school children, who may not be aware of oncoming traffic when they are boarding or exiting buses.