Quick, quick, quick

under the terms of the compromise of 1850, what was the decision about slavery in new states?

a.) popular sovereignty would be used to decide the question of slavery in any state entering the union after 1850.

b.) in states entering from the mexican cession, popular sovereignty would decide the question of slavery.

c.) states entering after 1850 would alternate between free and slave.

d.) states entering after 1850 would enter only as free states.