The answer is D. the district of Columbia was closed to slavery.
Senator Henry Clay introduced a series of resolutions on January 29, 1850, in an attempt to seek a compromise and avert a crisis between North and south. As part of the Compromise of 1850, the Fugitive Slave Act was amended and the slave trade in Washington DC was abolished.
The collapse of the Roman Empire
Military leaders:
Dwight Eisenhower (USA)
Chester Nimitz (USA)
Douglas MacArthur (USA)
Lord Mountbatten (UK)
Bernard Montgomery (UK)
Zhukov (Soviet Union)
Chiang Kai-Shek (China)
Willhem Keitel (Germany)
Erwin Rommel (Germany)
Badoglio (Italy)
Yamamoto (Japan)
Political Leaders:
Winston Churchill (UK)
Joseph Stalin (Soviet Union)
Franklin Roosevelt (USA)
Emperor Hirohito (Japan)
Adolf Hitler (Germany)
Benito Mussolini (Italy)
Limited government
A limited government is one whose legalized force and power is restricted through delegated and enumerated authorities and principles of the constitution. The United States is an example of such government as the state’s actions are limited by the constitution.
The slave trade increased in the seventeenth century, as more large-scale agricultural production increased the need for labor. The demand for sugar, a highly profitable crop that grew well in various parts of the Americas, continued to grow. And the Europeans introduced large-scale production of indigo, rice, tobacco, coffee, cocoa, and cotton. Imports of African slaves increased over the latter half of the 17th century and into the 18th. Approximately 1.3 million slaves were exported on the trans-Atlantic route in the 17th century; over 6 million were exported in the 18th century.