According to the United Nations' Human development Index, many countries with very high development are located in Europe and Australia. As defined in Wikipedia, Human development index is a composite statistic of life expectancy, education and income per capital indicators, which are used to rank countries into four tiers of human development.
According to the United Nations' Human development Index, many countries with very high development are located in Europe and Australia.
The Human Development Index also refered to as HDI, is a statistic index that evaluates and measures life expectancy, education, and per capita income in order to rank countries according to human development.
In order for a country to show a higher HDI, the lifespan, the education level as well as the GNI (PPP) per capita should be higher.
The correct answer is option C. "They were important centers of trade with the East and the Byzantine Empire". Italian city-states were prosperous as they served as centers of trade of the Byzantine Empire with the rest of the world in the East. The italian states seized the opportunity of making profits from the transport and sale of goods from one end of the known world to the other.
