Japan Is Mentioned in the Age Distribution Section Because

Japan is mentioned in the age distribution section because

A) it is the fastest-graying nation in the industrial world.
B) in the future it may have almost as many retirees as children.
C) its declining population means that the country's wealth will be spread among a smaller number of people, increasing its overall prosperity.
D) its declining population means that the country's social security funds will last a longer amount of time.
E) its increasing fertility rate will allow it to compensate for an increased number of aged people.