PLEASE HELP QUICKLY: (FIRST ANSWER GETS BRAINLIEST)

“[T]he maintenance . . . of the rights of the States, and especially the right of each State to order and control its own domestic institutions according to its own judgment [alone], is essential to that balance of power on which the perfection and endurance of our political fabric depend. . . .”
—Abraham Lincoln, 1st inaugural address, March 4, 1861

In his inaugural address, why did Lincoln refer to the right of each state to control its own affairs?


to assure the Confederate States of America that their decision to secede was valid


to affirm his belief in popular sovereignty


to assure the southern states that they would make their own decisions about slavery