A driver is leaving a school unloading area after students exited. Which final sequence best matches NY CDL-10 once all students are accounted for?

1. Close the door, start the engine, step on the service brake, engage the transmission, release the parking brake, turn off red lamps, check mirrors again, then pull away when safe
2. Release the parking brake first, then count students while moving
3. Leave red lamps on and pull away without checking mirrors
4. Start the engine only after the bus is already rolling