1
Oil accounts for over 90% of Angola's exports, but the country must import over half of its food. Other countries in Africa, however, do not produce oil but are able to export food products. Based on this information, which statement is true?
A.
Specialization encourages currency exchange between countries.
B.
Countries that specialize in mining have a higher standard of living.
C.
Specialization in a particular product encourages trade between countries.
D.
Countries that specialize in agriculture have a higher standard of living.