What is separation of powers and why is it important in constitutional design?

• A. The division of governmental powers across branches to prevent concentration of power; requires checks and balances.
• B. The consolidation of all powers into one branch to speed decisions.
• C. The abolition of constitutional constraints to empower the majority.
• D. The separation of powers refers to dividing government power only between the executive and the legislature; excluding the judiciary.

Answer: (A)

Separation of powers means dividing governmental authority among different branches so that no single body controls all the levers of government. Each branch has its own role: the legislature makes laws, the executive enforces them, and the judiciary interprets and applies them. This division is paired with checks and balances, so each branch can limit the others’ power and provide oversight. In constitutional design, this structure helps prevent the concentration or abuse of power, fosters accountability, and protects rights by ensuring laws are created, implemented, and reviewed through independent institutions. The other descriptions miss this core idea: concentrating power speeds decisions but risks tyranny; removing constitutional constraints undermines rule of law and minority protections; and excluding the judiciary leaves no neutral reviewer to uphold constitutional limits.