Japan is one of the most densely populated nations in the world primarily because A) so many people migrate from China to live in Japan. B) family size is much larger because it is not an industriali

Japan is one of the most densely populated nations in the world primarily because

A) so many people migrate from China to live in Japan.

B) family size is much larger because it is not an industrialized nation.

C) of the economic growth and population is limited to the coastal plains.

D) it is split into two nations and most people live in the democratic area.