The answer is <em>D)Arguments and ineffectiveness in the government.</em>
The constitution of the United States set up a set of checks and balances among the three branches of government. The Legislative, Executive and Judicial powers constitute the structure of the american government, and they have power to check each other's way of work.
One example of the check and balance system is that the Supreme court of the United States may check congress by declaring a law passed by this one as unconstitutional. This is a clear check limit used against the legislative power, that is the congress. But on the other hand, the power is balanced because the members of the Supreme Court are appointed by the President of the country (the Executive power), and to be appointed they have to be approved by the Congress.
I memorized these using the three Gs, Glory, God, and Gold. Glory for England, fulfilling God's plan of world conversion, and money for England.
Mita system was one of the best inventions of the Incan government! Enormous construction of structures and highways was made possible because of the system. In the system all the people worked for the government for a certain period of time. This labor was free to government. During the Incan period, people were needed to work only 65 days to provide food for their family. So they had ample time afterwards. When it was someone elses turn,they had to join Mita. It was like the public service systems of modern times. Government took care of the family who was absent in the while working in MIta. In Mita people worked in building highways, construction of Emperor and nobles, monuments, bridges,houses, temple fields, Emporer fields and also mines.
The United States wasn't a part of it and the countries that were a part of it didn't take the idea of collective security seriously. When countries attacked others nothing was done.
