Japan Has More Vending Machines Per Capita Than Any Other

Multiple Choice

Japan has more vending machines per capita than any other country in the world.One explanation for this phenomenon is that

A) vending machines are very expensive in Japan
B) the customs of the Japanese marketplace encourage businesses to install vending machines
C) vending machines were invented in Japan
D) time is less valuable in Japan than it is elsewhere
E) most products commonly purchased by Japanese consumers are small enough to be sold in vending machines