Which is the best summary of the Missouri compromise

A) to resolve the conflict between large and small states, Congress was given two houses
B) solve the issue of the extension of slavery to Louisiana territory line was drawn, dividing future and slave states
C) to resolve the dispute between free and slave states, each slave was counted as 3/5 of a person for purpose of both taxation and representation
D) to resolve the issue of the admission of California as a free state, a cover fugitive slave wall was enacted

B) solve the issue of the extension of slavery to Louisiana territory line was drawn, dividing future and slave states