Rise of global inequality, increase in life expectancy, decline in price of goods etc.?

They are characterized as factors that can influence nations economy

Explanation:

increase in life expectancy was driven mainly by improvements in sanitation, housing, and education, causing a steady decline in early and mid-life mortality, which was chiefly due to infections.

Global inequality is driven by changes both of the inequality within countries and the inequality between countries. ... Since then, inequality between countries has declined. As is shown in this visualization, the inequality of incomes between different countries is much higher than the inequality within countries.

Deflation can be caused by a combination of different factors, including having a shortage of money in circulation, which increases the value of that money and, in turn, reduces prices;

c: in the east might be the correct answer

the density would be a smaller number.