Answer:
Tribalism developed in the early 1900s and encouraged the nationalist spirit of Africans throughout the world.(B.)
Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence
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Answer:
The Development of Monopolies
Explanation: In a completely free market, there exists no regulation limiting the development of monopolies. The rise of a monopoly drastically decreases market competition and causes the price of goods to no longer accurately reflect supply and demand.
