According to the graph, and if the trend continues, in 2030, D. more than 80% will be living in urban settings.
The fourth alternative is correct (D).
Nations produce goods and services according to their productive capacity, their natural resources and the specialization of the workforce. In this way, some goods and services are expensive for a nation to produce, but are cheaper for other nations to produce.
Thus, if each nation specializes in the product in which it has a production advantage, nations can make tradeoffs. The country that has an advantage in the production of a good can export it to other countries and still can import the goods to which it is not specialized.
