Checks and balances is the answer.
<span>It is letter D. The supremacy clause condition is the most critical underwriter of national union. It guarantees that the Constitution and government laws and arrangements overshadow state law and ties all judges to cling to that standard in their courts. The supremacy clause is the area of the Constitution expressing that the Constitution and government laws made in promotion of the Constitution are the incomparable traditions that must be adhered to. The supremacy clause likewise implies that states can't manage, meddle with, or control government issues.</span>
