How did the concept of manifest destiny create the need for the missouri compromise? a. as the us expanded, there needed to be a balance of power between the north and the south, which led to the missouri compromise. b. as the us expanded, slavery would be necessary to encourage agricultural growth, which led to the missouri compromise. c. as the us expanded, northern and southern states sought a way to eliminate their differences, which led to the missouri compromise. d. as the us expanded, there needed to be a way to prevent territories from becoming states to avoid conflict, which led to the missouri compromise.