Which of the Following Is True of Unemployment

Multiple Choice

Which of the following is true of unemployment?

A) The natural rate of unemployment is present when the economy is operating at full employment.
B) The natural rate of unemployment is equal to the number of persons unemployed divided by the number of persons in the labor force.
C) The natural rate of unemployment is primarily the result of the ups and downs of the business cycle.
D) Public policy cannot influence the natural rate of unemployment.