A.to stop abuse of power and tyranny by the central government.
Because the American war of independence was fought because of the king's tyranny and because of lack of representation in parliament.
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Portugal begin to explore the coasts of South America and Africa in the 1400s because :to take over the continents.
The answer to the question above is radio and phonograph.
The radio and the phonograph are the technology that was introduced in the late 1800s that aided in the spread of jazz music to all parts of the United States and the world.