Answer:
D. structural unemployment.
Explanation:
D
Structural unemployment is caused by changes in the​ economy, such as shifts in manufacturing​ techniques, increased use of computers and electronic​ machines, and increases in the production of services instead of​ goods.
Structural unemployment is caused by technological change.
Cyclical unemployment is caused by business cycles. In down turns, unemployment rises and falls during a boom.
Frictional unemployment is the period between when Labour leaves his job and gets another one.
