What pre-civil war arrangement guaranteed that new states entering the nation would keep the balance between slave and free states?

select one:
a. mason-dixon line
b. bloody kansas
c. us constitution
d. missouri compromise

d. Missouri Compromise

The Missouri Compromise is an agreement that guaranteed balance between slave and Free states. In 1819, Missouri was asked to enter the Union as a slave state but a bitter debate arose that was not resolved only after Maine requested entry as a free state in 1820. The Congress battle to have an equal number of slave states and Free states.

However, the Missouri Compromise became controversial for many had worried that the country had become lawfully divided along sectional lines, so the bill was effectively repealed as Kansas-Nebraska Act of 1854 and declared unconstitutional that resulted to increase tensions over slavery and eventually led to the civil war.

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

george calvert wanted maryland to be a colony where could live safely. because georgia's founders wanted a colony of small farms rather than large plantations, they originally banned under british law in the 1700s, people who owed money could be