B.Jefferson supported Enlightenment principles but continued to own slaves
C, the chinese government recently lowered taxes on all foreign imports
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.
Answer:
The Monroe Doctrine joined isolationism as a major part of United States foreign policy. It also told a hidden message. It told the world the United States wasn't weak group of states, but it had become a strong confident nation that was to be respected by the world.
Explanation: