The battle of Lexington and Concord
I believe, due to my research, that the answer is A. In the Mayflower Compact, they had their first democratic government and in order to make that successful, you would want to make rules that are fair to the people and yourself! Hope this helps! =)
This would be an oligarchy
The nations had different systems of government and different economic systems. The USSR hated the U.S and it's capitalism, hoping to one day crush it but with the fall of the USSR in 1991, It was a monumental victory for capitalism over communism and socialism.
D. The British had a navy, professional army, a blockade, and mercenaries