the answer is the 3rd one. By Imposing presidential term limits, it prevents one president from gaining too much power for a long period of time.
Explanation:
No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of President more than once.
this is the 22 Amendment for reference. Hope this helps! :)
