The four candidates in 1860 showed how deeply divided the country was. What did each of the candidates support?

They left because they didn't want Lincoln as president because his opinions and purposes were seen as hostile to slavery. They believed that each state had its own independence and right to leave.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

answer; /// working class;