I believed among all the city states in Greece, the most important was Athens. It was one of the oldest cities of the world and the center for arts, science, architecture, politics, and philosophy. The medieval period was inspired by its culture. This was a place were great Philosophers came; Aristotle, Plato, and Socrates. All of these are essential elements that became a foundation of man's development.
The answer is c. Civil War. The states of the South were
against any interference from the Federal government particularly on the issue
of slavery. When Lincoln was elected,
the Southern states felt that their rights to own slaves would be jeopardized and
this would lead to Civil War.