3 <span>Availability of free farmland in the Mississippi River Delta Region </span>
Answer:
Abuse of power
Explanation:
All the others are good things and are important for a healthy and thriving society, abuse of power on the other hand is bad.
For example, if someone has been president for four years and re-election is happening, the president could kill the opposition(other people trying to become the new president) and stay as president.
Mein Kampf
the Nuremberg Laws
kristallnacht
The answer is the last one :)