Which of the Following Is True of the Middle Class

Which of the following is true of the middle class in emerging markets?

A) Companies can expect middle-class consumers worldwide to earn roughly the same income.
B) Middle-class consumers in less-developed nations often cannot afford to pay as much for a product as consumers in the more advanced economies do.
C) The majority of the global middle class lives in developed nations.
D) Only one-third of people living in developing countries are literate.
E) The emerging middle class constitutes the highest percentage of the total country population in Mexico.