The establishment of the polis or "city-state" was the greatest political achievement of this society. The polis was a single city
around which all political units in the area were centered. All of the city-states controlled their own land and were independent from
one another. Sparta was the largest of the city-states. At one time, it controlled more than 3,000 square miles of surrounding territory.
Which of these societies is described by the passage above?
A. Indus River Valley
B. Ancient Egypt
C. Greece
D. Mesopotamia

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live

the anwser is a) to prevent military conflict

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.