The top circle (A) is the answer.
In general, this movement had a negative impact since lots of the expansion involved moving into territories that were controlled by European nations. Although most of the time physical conflict was avoided.
During the warring states period, china became a more unified country and thus lead to the first true chinese empire. The person that was responsible for ending the war was emperor Qin, which then lead to the Qin dynasty.
Historians refer to the rise of Andrew Jackson to the presidency as a “triumph of the white man’s democracy” because during the so-called “Age of Jackson” the right to vote was extended to nearly every white adult male, fueling the modern party system, and slavery became stronger in the south forcing thousands of Native Americans off their land.
The Democratic-Republican Party split over the presidential succession, when the party faction that supported the old Jeffersonian principles, led by Andrew Jackson, became the modern Democratic Party.
It emphasizes that everyone is equal under the law.