AP US Historyhardmcq1 pt
Which of the following best explains the connection between the Freeport Doctrine and the Democratic Party's split in 1860?
A.Douglas's insistence that settlers could exclude slavery despite Dred Scott angered southern Democrats, who demanded a federal slave code and walked out of the party convention
B.The Freeport Doctrine united northern and southern Democrats behind Douglas
C.It led Douglas to withdraw and endorse Lincoln
D.It prompted southern Democrats to fuse with the Republicans