How did events of the 1850s lead to the collapse of the Union in 1861?

The election of Lincoln confirmed the south decision to secede as Lincoln was uncompromising on his decision about property slaves the constitution allowed Kansas to be admitted into union as a slave state.

question:  

the chart compares religious beliefs to us political party support.

religious beliefs and party support, 2012

this chart demonstrates that

a) more highly religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

b) more highly religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

c) more moderately religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

d) more moderately religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

answer: a.

protected civil liberties and outlawed slavery in the new territories.