Japanese leaders are concerned about the country's aging population and declining birth rate because
A) an aging population means that Japanese society will become less dynamic than in the past.
B) an aging population means that government services for the elderly will be increasingly utilized.
C) a declining population would result in a loss of membership in international economic organizations.
D) a declining birth rate means that fewer workers will be expected to support greater numbers of elderly, placing a financial burden on the workers.