Which aspect of the Greek view of society served as an integral (main) part of the development of democracy?

The Greek view of society served as an integral (main) part of the  development of democracy is briefly described below in details.

Explanation:

The word democracy is derived from the Greek word that stands for people (demos) and rules (Kratos). Democracy is the concept in which people or the citizens of the land should take a direct and active part in the functions of the government and also keep an eye on the functions of the government. the world's first known democracy was the Athenian democracy.

question:  

the chart compares religious beliefs to us political party support.

religious beliefs and party support, 2012

this chart demonstrates that

a) more highly religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

b) more highly religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

c) more moderately religious people supported the republican candidate, while more nonreligious people supported the democratic candidate.

d) more moderately religious people supported the democratic candidate, while more nonreligious people supported the republican candidate.

answer: a.