Which quotation from James Monroe BEST reflects the policy that became known as the Monroe Doctrine?

How was rockefeller able to build his monopoly across the oil industry? he found newer and cheaper ways to refine oil, increasing his profits. he confined his business to ohio so he could buy all the refineries there. he bought up oil refineries, cut costs, and reinvested his profits in other refineries. he began to sell kerosene as well as oil, expanding his market.

During the cold war, which of the following groups of countries would have all been"behind the iron curtain"

How did france’s tax policies contribute to the french revolution?