Of the following high-income countries, which has the lowest infant mortality rate?

Most of our environmental problems exist because of

a. a lack of enforced and easily traded property rights. b. consumer ignorance. c. profit maximization on the part of business firms. d. the failure of political officials to regulate business activities.

At the state and local levels of the U.S. government, a majority of government employees work in which of the following areas?

A. Postal service. B. Education. C. Hospitals and other health care. D. Police and corrections.