Which political trend do the maps show in the united states from 1848 to 1860? a. Nationalism that kept the northern states in the union a. Nationalism that kept the northern states in the union b. An increase in northern support of the democratic party b. An increase in northern support of the democratic party c. An increase in southern support of the democratic party c. An increase in southern support of the democratic party d. Sectionalism that led to the secession of the southern states d. Sectionalism that led to the secession of the southern states.

Abe Lincoln benefited from sectionalism during the 1860 presidential contest. Because slavery was opposed in every Northern state, Lincoln won the popular vote. The Confederate States of America was formed after the victory, which led 11 Southern states to rebel from the union.
Abraham Lincoln's win in the 1860 presidential election led to calls for disunion throughout the slave-owning South. The American Civil War began on April 12, 1861, in Charleston Harbor as a result of South Carolina's decision to secede from the Union.
Sectionalism, not slavery, which only impacted a relatively tiny percentage of southerners, was the primary cause of the American Civil War since it was essential to establishing Southern social life and influencing its political inclinations.

Thus the correct answer is Option D.

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