Concept:Judicial review is the power of the judiciary to examine laws and government actions for constitutionality.
Explanation:In a democracy, judicial review lets courts declare laws unconstitutional.
It also allows courts to check executive actions against the Constitution.
This prevents any one branch of government from becoming too powerful.
It does not depend on the media or on police support.
Instead, it is a built-in mechanism to maintain balance among branches.
Hence, judicial review is a clear aspect of checks and balances in a democratic system.
Answer:Option A: checks and balances.