Which of the following is true of the 1860 presidential election? a. abraham lincoln won more electoral votes from slave states than from free states. b. all of abraham lincoln's electoral votes were from slave states. c. abraham lincoln's electoral votes were evenly divided between free states and slave states. d. all of abraham lincoln's electoral votes were from free states.

The correct answer is D. At the 1860 presidential election, all of Abraham Lincoln's electoral votes were from free states.

Lincoln won a plurality of the popular vote and a majority of the electoral vote. He received absolute majorities in the northern states that combined for the majority of the electoral votes. Lincoln's main opponent in the North was Douglas, who finished second in several states and in the popular vote. The election of Lincoln led to the secession of several southern states, and the start of the Civil War.