I believe that the answer is D.
Answer:
D.The national government shares power with the states.
Explanation:
Three things or elements make the government created by the Constitution a federal system. These include the following:
1. Establishment of national government comprising of a legislative, an executive, and a judicial branch, with each performing checks and balances on one another or simply Separation of power.
2. Division of governmental powers between the federal government and the state government.
3. Protection of individuals or citizens rights
Hence, in this case, the correct answer is "The national government shares power with the states."
Using irrigation system was the practice closely associated with most ancient river valley civilization.
B. A merchant in the Maryland Colony unloads fur from a Spanish ship in exchange for corn.