Concept:The doctrine of separation of powers distributes the functions of government among distinct organs to prevent the dangerous concentration of power in one body.
Explanation:The central purpose of this doctrine is to place limits on government power.
If the same body makes laws, enforces them, and punishes offenders, it is likely to use power in an oppressive and arbitrary way.
To avoid this, the legislative, executive, and judicial powers are kept separate and given to different institutions.
Each branch works independently and serves as a check on the others.
Because no single organ has the final say in all matters, the government is forced to act according to law and reason.
Arbitrary actions are thus minimized or eliminated.
Educating people on their rights, taming the executive, or ensuring constitutional review may be desirable outcomes, but they are not the core reason for the doctrine.
Its foundation is the prevention of arbitrary rule.
Answer:C. prevent arbitrariness