The routes were shorter
&
it was faster
hope i helped :)
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>
(the answer is C. Peer groups)also if you need help try searching Sociology Ch. 4 on and u can find flash card to help