Final answer:
When a school bus is stopped on a road with four or more lanes, you must stop your vehicle in all lanes, regardless of the direction of travel. Wait until the bus resumes motion or the bus driver signals it is safe to proceed.
Step-by-step explanation:
When a school bus is stopped on a road that has four or more lanes, you must stop your vehicle in all lanes, regardless of the direction of travel, unless there is a physical barrier like a median separating the lanes. This is to ensure the safety of the students boarding or exiting the bus. The vehicles in all lanes must remain stationary until the bus resumes motion or the bus driver signals it is safe to proceed.