Answer:
National conversation is responsible for developing the nation and to to run the nation from my point of view
It allows Rockefeller's<span> corporation produced its own tank cars, pipelines, and even its own wooden barrel.
Since Rockefeller own every aspect of the production, his company is not relying on anybody and no-one will be able to influence him in determining the price for the oil product, which lead to complete monopoly on that certain sector</span>
