Which is the best summary of the Missouri Compromise?

To resolve the conflict between large and small states, Congress was given two houses.

To resolve the issue of the extension of slavery into the Louisiana Territory, a line was drawn dividing future free and slave states.

To resolve the dispute between free and slave states, each slave was counted as threefifths of a person for purposes of both taxation and representation.

To resolve the issue of the admission of California as a free state, a tougher fugitive slave law was enacted.

To resolve the issue of the extension of slavery into the Louisiana Territory, a line was drawn dividing future free and slave states.