Many Southerners opposed Abraham Lincoln in the 1860 presidential election for the following reasons:
B. Lincoln wanted to halt the spread of slavery in the country.
C. They thought his victory would threaten the Southern economy.
These two options reflect the primary concerns of Southerners during the election, as they feared that Lincoln’s anti-slavery stance would impact their way of life and economic interests, which heavily relied on slavery. Options A, D, and E do not accurately represent the main reasons for Southern opposition to Lincoln.