which of the following best shows how the issue of states rights contributed to the onset of of the Civil War?

A ) many northerners believe that states right should not extend to
B) many southerners believe that giving states additional rights would hold back western expansion
C) many southerners believe the rights of their states were threatened by northern abolitionist
D) many northerners, believe the rights of their states were threatened by the election of Abraham Lincoln

C) many southerners believe the rights of their states were threatened by northern abolitionists.