If the population of a country is 250,000 people, its labor force consists of 145,000 people, 35,000 people are unemployed, 10,000 are unable to work, and 5,000 are unwilling to work, the unemployment rate is
a. 24.1 percent.
b. 22.1 percent.
c. 14.0 percent.
d. 19.4 percent.