C. winning the free exercise of voting rights
The correct answer is B. Human Development Index.
The Human Development Index (HDI) takes into consideration several different factors in order to categorize nations as to levels of development. Some of the factors they use are:
A) A country's Gross National Income (GNI)
B) Life expectancy
C) Education of citizens (i.e. college degree, years of schooling for average citizen).
The correct answer is: Roman society was hugely militaristic, bent on territorial domination, and Greek city-states were democratic and focused on arts and culture.
One of the main differences between the Greek polis and the Roman Republic is that the Greeks had a democratic society, they were researchers, lovers of knowledge, wisdom, and beauty.
On the other hand, the Romans had an aristocratic society, they were practical and their main interest was to expand the Empire through military forces and also to enrich themselves.
Huns, Vandals and Visigoth :)