A political scientist seeking to simultaneously test the impact of four independent variables on a dependent variable would use:

Describe the impact of the Safavid Empire rule on Iran

What will be an ideal response?

The United States has two court systems, state and federal. The federal system

A. is the only one that has judges who are appointed to office. B. is the only one with appellate courts. C. has discretionary jurisdiction over all cases arising in the state system. D. is the only one based on the constitutional doctrine of the separation of powers. E. None of these answers is correct.