Final answer:
When driving on a two-lane roadway and a school bus stops for passengers, you must stop your vehicle and wait until the bus moves or the driver signals you to pass.
Step-by-step explanation:
If you are driving on a two-lane roadway and a school bus stops for passengers, you are required by law to stop your vehicle and remain stopped until the school bus starts moving again or until the bus driver signals you to pass.
This ensures the safety of students entering or exiting the bus. It is crucial to be patient and cautious in these situations to avoid potential accidents and to comply with traffic laws designed to protect children.