After the Boston Massacre, the colonies organized militias to help protect their families from the British
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The correct answer is B) The upheaval caused by urban industrial laborers.
During the time of the American Revolution, the increase of industrialization had not taken place in the North American continent. America does not begin large scale industrialization until the middle of the 19th century.
All of the other answer choices played a critical role in starting the American Revolution. The debt from the Seven Years War resulted in the need for the British government to tax the colonists.
The thousands of miles between Britain and North America caused a disconnect and the development of two very different cultures.
Lastly, the British neglect of the needs/desires of the American colonies caused resentment. This is due to the fact that the American colonists were not represented in the British parliament (who passed a series of taxes on the colonists).
The Industrial Revolution began in B. Great Britain from around 1760 to 1820. It then spread through Europe and eventually around the world.
No, the Monroe Doctrine does not provide U.S. sympathy for the new revolutionary governments in South America. You're thinking of the "Good Neighbor" policy.