Answer:
Limited Government
Step-by-step explanation:
Federalism - separating the government into 2 levels, for the U.S. its the federal government and state government
Checks and balances - the control each branch of the federal government has over each other. The president can veto a bill and congress can impeach the president, etc
Judicial review - Where a higher level of court looks at the decision of a lower court to see if its constitutional
Limited Government - The powers the government can and can not have. Such as how they can imprison us for murder but can't imprison us for exercising the right to free speech