which of the following best shows how the issue of states rights contributed on the onset of the Civil War?
a. Many southerners believe that giving states additional rights would hold back western expansion.
b. Many northerners believe that states rights should not extend to slave states.
c. Many southerners believed that rights of their states were threatened by northern abolitionists.
d. many northerners, believe the rights of their states were threatened by the election of Jefferson Davis.