They wanted to be the best country ever
I think it should be The 3rd one. The south did farm tobacco, so I know it cant be that, and they did use slave labor more than the North, and the farm were called plantations. That leaves only the Dutch and German settlers.
I think that the advantages of a mixed market economic system
are: competition lowers prices and increases choices and the government provides essential services.
The mixed economy system combines government planning with the use of the free market. In the mixed economy, just as in the market economy, people and firms in the private sector own scarce resources with the aim of making as much money as possible. However, in mixed economies the government also own some scarse resources to produce what they think their country needs.
It was the Trade Unions that frequently protested the hiring of unskilled factory workers.