Question

More slave restrictions occured due to...

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a. rising unrest in the North.
b.the onset of the civil war.
c.slaves rebelling against the South.
d.Lincoln becoming president. ​

Answer 1

d.Lincoln becoming president. ​

Step-by-step explanation:

More slave restrictions occured due to Lincoln becoming president. ​

Abraham Lincoln was the first president to attempt to stop slavery.

Therefore, this seemed like a threat to slave masters.