The unemployment that 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, is . frictional unemployment. b. cyclical unemployment. c. natural unemployment. d. structural unemployment.

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.