"C. <span>Muslims finally defeated the Christian crusaders and retained control of the Holy Land" is the best option from the list since this happened but only for a short time. </span>
The doctrine that allowed people living in the territories to decide the issue of slavery through their governmental bodies was called popular sovereignty.
At the outset of the secessionist movement in the south, it was "South Carolina" that defeated the cooperationist argument that the south should act as a unit, since it was South Carolina that was the first to secede.
