Answer:
the Fugitive Slave Act was amended and the slave trade in Washington, D.C., was abolished. Furthermore, California entered the Union as a free state and a territorial government was created in Utah. However, The Compromise of 1850 overturned the Missouri Compromise and left the overall issue of slavery unsettled.
I'm not sure if I remember correctly, but I believe it's C.) Passing laws that apply to actions taken before the law was passed.
the railroad transformed the western frontier and paved the way for settlement in formerly remote regions.
