Context: Athens was one of the most powerful independent city-states in ancient Greece. Look at the definitions below. Then answer the question.
Which of the following statements describess living in an independent city-state?
A. My city rules itself and is not part of a larger country.
B. All the decisions about my city are made by a faraway emperor.
C. I live by myself in the wilderness.
D. I vote for a president that rules over many different cities.
Determine the correct option from the provided choices and reply with its corresponding letter.

A