Answer:
D. the power to set the jurisdiction of courts
Step-by-step explanation:
Separation of powers is the idea that the three tiers of government Judiciary, Legislature and Executive must separate their powers for a just and fair government.
With this separation of powers comes checks and balances as each arm of government act as a "watchdog" to the other so they do not over-use their power.
One way that the legislative arm of government has a check over the judicial system is having the power to set the jurisdiction of courts.