Which is the correct sequence of events as a school bus driver prepares to stop to load or unload children?

When you meet an oncoming school bus displaying flashing amber lights, you must slow to a speed no faster than 20 mph and be prepared to stop. If its red lights are flashing or if its stop arm is out, you must come to a complete stop at least 15 feet from the bus. Remain stopped as long as the red lights flash or the stop arm is out.
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