I believe the term you are looking for is called popular sovereignty.
Answer:
The American Revolution was a time when the British colonists in America rebelled against the rule of Great Britain. There were many battles fought and the colonies gained their freedom and became the independent country of the United States. The American Revolutionary War lasted from 1775 until 1783.
D- a person can communicate instantly with others almost anywhere in the world
Answer:
a,b,c are correct... take for example Indus valley civilization