In the United States, _______ of the total of the population are Asian Americans.

A. An efficient allocation of resources is realized through perfect competition.
B. Perfect competition can be realized where monopolies are absent.
C. The "invisible hand" checks and balances the economy.
D. Adam Smith advocates the promotion of self-interest.

A. Supply and demand.
B. Laissez faire.
C. Self-interest.
D. Non-interference from the government.