Question

Proslavery settlers who came to Kansas from Missouri in the 1800s were known as

Answer 1

I should go with B cause it goes with the problem 

Answer 2

B.) Border Ruffians.
Abolitionists didn't agree with slavery.
Free-Soilers were members of the Free-Soil party.
Slaveholders were just slave holders in the South. This is only wrong because they were the slaveholders in the South that stayed in the South.

Hope this helps! (: