Advantages—abundant natural resources, a stable government with relatively lax regulations, and a large workforce—made it the dominant industrial power by the 20th century.
The US believed in isolation, if another country attacked the US that is the only way that we would get involved, therefore we tried to stay out of the mass killings and havoc that the Germans and Japanese were creating until we felt that it involved the US. The US did not want to pick a side and have to stay loyal to that side and go to war when that country did because of the alliance. The US finally joined in to help the allied powers to supply them with weapons/military troops. They did not enter the war until December 1941.
Answer: Vertical integration is firm taking control of and producing its inputs and outputs rather than using the market.
Example: A vertically integrated produce company, for example, might hold a farm, a produce distribution business, and a green grocery.
The answer is A, the French government along with the Belgian government occupied the industrial rhur valley to make up for unpaid reparations.