Refer to the figure below to answer the following questions.

Infant mortality and life expectancy at birth in developed and developing countries (data as of 2005).
-In terms of demographics,which country is likely to experience the greatest population growth problem over the next ten years?

A)Mexico, because there are fewer pre-reproductive individuals in their population.
B)China, whose population is more than a billion, but whose expected fertility rate is 1.8 children.
C)Germany, where the growth rate of the population is 0.1% per year.
D)United States (2009 population ~ 205 000 000, where 200 000 Americans are added to the population each day)
E)Afghanistan, with a 3.85 annual growth rate