Answer: Its economic base was agriculture.
It lacked a modern transportation system. It lacked a substantial wealthy class.
Answer:
B. Separation of Powers.
Explanation:
It is very important that the powers of the executive branch and of the President of the USA are defined. If it is not defined, we would have to answer the question "Who should be the commander-in-chief?" Congress? Chief Justice? The Joint Chiefs of Staff? The mayor of Washington D.C.? By clearly establishing the responsibility of the president as commander-in-chief , the Constitution´s fathers followed the principle of the separation of powers.
America's economic strength influenced its policies toward Europe during the nineteen twenties. In fact, one of the most important issues of this period was the economic aid the United States had provided European nations during World War One.