As the first peaceful transition of political power between opposing parties in U.S. history, however, the election of 1800 had far-reaching significance. Jefferson appreciated the momentous change and his inaugural address called for reconciliation by declaring that, "We are all Republicans, we are all Federalists."
For more info http://www.ushistory.org/us/20a.asp
Its (B) ......................................................................
From my understanding of the Rwandan genocide, the Tutsis once held power in Rwanda for many years leaving Hutus as the minority. So I would have to say the answer is A
To keep the invaders out of China ordered to be made by Qin
The argument is that the mortality transition occurs exogenously and is the cause of a subsequent decline in fertility and rise in urbanization. This exogenous demographic process plays out over time, and has effects on economic, social, and political development. Hope this helps. :)