A Significant Fact About the Unusual and Changing Age Structure

A significant fact about the unusual and changing age structure of the Arab world trend between 1990 and 2020 is that ________.

A) the dependency ratio between economically active and economically dependent declined to 86% in 1990 and 70% in 2000
B) all of the above
C) the growth of economically active population will be slower than that of the economically dependent population
D) the dependency ratio between economically active and economically dependent averaged 90% between 1950 and 1980
E) the dependency ratio between economically active and economically dependent is expected to reach 50% in 2025