The Author Suggests That One of the Most Important Statistics

The author suggests that one of the most important statistics is that nearly 30% of the people in less-developed countries are under 15 years of age.Why is this important?

A) Young people buy lots of goods and services.
B) Young people will be the leadership of the future.
C) Young people will feel the effects of global warming.
D) Young people don't have good sense.
E) Young people are poised to move into their prime reproductive years.