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).
Answer:
Explanation:
The Columbian Exchange: from the Old World to the New World
On his second voyage, Christopher Columbus brought pigs, cows, chickens, and horses to the islands of the Caribbean. Many Native Americans used horses to transform their hunting and gathering into a highly mobile practice.
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Ancient Greece introduced to them a democratic form of government.
