According to montesquieu ,the primary reason for the separation of powers is which of the following?

The primary reason of Montesquieu to advocate the separation of powers is to impede a ruler from concentrating all power in his hands. If the judiciary is not independent from the legislative or the executive branches, there is no liberty. Montesquieu also argues in favor of checks and balances among the branches.

Explanation:

there has only been 12 presidents. the 12th president is/was moon jae-in