In the United States About Two-Thirds of a Ton of Waste

In the United States about two-thirds of a ton of waste is generated for each person (including children) . Compared to the United States, Japan and Europe generate about half that amount. One of the factors that probably does not contribute to this difference is

A) the United States collection and dumping processes mix and crush everything together so separation is not possible.
B) the fact that Japan is an island with limited space.
C) the high rate of recycling in Japan.
D) that people in the United States have a higher standard of living than Japan and Europe.
E) All of these probably contribute to the difference in the waste stream.