I want to say A a factory employs many workers doing different jobs to produce a car. Factories do mass producing
A patent is an exclusive right granted by country to allow the inventor to exclude others from making, using or selling their invention in that country during the life of the patent.
Railroads, intermodal, rail-to-truck transport. There might be more. And btw when I mean rail well I can’t really explain it but here. https://www.csx.com/index.cfm/about-us/company-overview/railroad-dictionary/?i=C sorry I’m so bad a explaining things! Hope this helped