Answer:
The answer is option A.
Step-by-step explanation:
With an end goal to save the equalization of intensity in Congress among slave and free expresses, the Missouri Compromise was passed in 1820 conceding Missouri as a slave state and Maine as a free state. In 1854, the Missouri Compromise was canceled by the Kansas-Nebraska Act. The reason for the Missouri Compromise was to keep a harmony between the quantity of slave states and the quantity of free states in the Union. It enabled Missouri to enter as a slave state in the meantime Maine entered as a free state, along these lines keeping up a parity in quantities of free and slave states.