In the United States in the mid-nineteenth century,

a. the Republican Party was dedicated to abolitionism.
b. southerners argued that slaves and industrial workers were treated equally.
c. popular sovereignty resolved the problem of slavery in the United States.
d. the Democratic Party became identified with the southern planters and their interests.
e. the slavery issue in America had produced a strong sense of nationalism.

answer: d. the Democratic Party became identified with the southern planters and their interests