Which best lists careers in the order of these employers in the Transportation and

Which best lists careers in the order of these employers in the Transportation and Logistics career cluster: self-employment, private companies, and the government?

Taxi Drivers → Warehouse Laborers → Air Traffic Controllers
Taxi Drivers → Air Traffic Controllers → Warehouse Laborers
Air Traffic Controllers → Warehouse → Laborers Taxi Drivers
Air Traffic Controllers → Taxi Drivers → Warehouse Laborers →