Help with these macro questions please!

As firms search for the best employee to fill an opening and the unemployed search for the job that best fits their skills, the economy experiences O A. changes in the business cycle. O B. structural unemployment. O C. seasonal unemployment. O D. cyclical unemployment. O E. frictional unemployment.John has been laid off from his job because of a general downturn in the economy. John's unemployment is best classified as O A. structural. B. avoidable. O C. seasonal. O D. frictional. O E. cyclical.Which type of unemployment arises when changes in technology or international competition change the skills needed to perform jobs or change the location of jobs? O A. frictional O B. cyclical O C. seasonal O D. skill - set O E. structural