The following table contains information for the U.S. for 2001.

U.S. Economy: 2001	Thousands of persons
Civilian labor force	143,772
Civilian employment	136,940
Civilian working-age population	215,227

Compute the unemployment rate and the labor force participation rate.

a. unemployment rate = 4.75 percent; labor force participation rate = 66.8 percent

b. unemployment rate = 4.75 percent; labor force participation rate = 95.25percent

c. unemployment rate = 9.52percent; labor force participation rate = 66.8 percent

d. unemployment rate = 3.17percent; labor force participation rate = 48.8 percent