Final answer:
On a divided highway with four or more lanes and a median separation, only traffic moving in the same direction as the stopped school bus are required to stop.
Step-by-step explanation:
When driving on a divided highway of four lanes or more with a median separation, and a school bus stops to load or unload children, different rules apply compared to a two-lane road. Typically, traffic moving in the same direction as the bus must stop. However, on a divided highway with a median or barrier, only the traffic following the bus is required to stop. Traffic moving in the opposite direction can proceed with caution. This rule ensures the safety of the children getting on or leaving the bus while recognizing the physical separation of the highway's opposing lanes of traffic.