Go to the Web site of the Office of National Statistics (https:// www.ons.gov.uk/), the United Kingdom's producer of official data and check the section "Employment and labor market."

a. How does the Office of National Statistics define unemployment? How does this definition differ from that of the International Labour Organization?

b. What is the latest level of unemployment in the United Kingdom? What was the highest percentage change of unemployment in the United Kingdom during the last 10 years?

c. Does the sum of the level of employment and the level of unemployment in the United Kingdom add up to \(100 \%\) ? Explain your answer.