To what extent was president harry truman's policies a continuation of president franklin roosevelt's policies

With the death of President Franklin D. Roosevelt on April 12, 1945, Vice President Harry S. Truman assumed the Oval Office. He surely knew he faced a difficult set of challenges in the immediate future: overseeing the final defeats of Germany and Japan; managing the U.S. role in post-war international relations; supervising the American economy's transition from a war-time to a peace-time footing; and maintaining the unity of a fractious and powerful Democratic Party.

b is correct

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explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.