There are actually four kinds of business; tourism, food service, railroads, and sales. (And hospitals/manufacturing and air travel) Source: https://m.youtube.

There are actually four kinds of business; tourism, food service, railroads, and sales. (And hospitals/manufacturing and air travel) Source: https://m.youtube.com/watch?v=9qhk8ysJSwI https://m.youtube.com/watch?v=9qhk8ysJSwI