Answer:
The correct answer is B. Free Soilers came to Kansas in the 1800s to ensure that Kansas voted to become a free state. They clashed against the Border Ruffians in the process known as Bleeding Kansas.
Bleeding Kansas was a conflict consisting of a series of violent civil confrontations in Kansas and Missouri between 1854 and 1861. The conflict was about whether the Kansas area would be joined to the United States as a state with or without slavery, and the fighting took place between slavery supporters (known as Border Ruffians, often from the slave state of Missouri) and their opponents (the Free-Staters). The battles were characterized by cheating, raids, attacks and revenge killings. The conflict ended with Kansas joining the United States as a free state on January 29, 1861, but the battles between supporters and opponents of slavery in Kansas continued in the Civil War.