Aknitting factory worker who loses her job because the company has relocated the plant to another country is an example of

Structural unemployment

Explanation:

Structural unemployment is a type of unemployment which is involuntary. The primary reason behind this type of unemployment is the lack of match between the worker's skill which he intends to offer and the employers' demand for the skill. There lies a form of disparity among the two. One of the major conditions behind the phenomena is the advancement in the technicalities of the process. In the above case, the reason is the relocation of the job. The worker working in the knitting factory becomes structurally unemployed when the factory relocates.

c. wright mills's sociological imagination suggest investigating to explain this increase?

the answer to your question is,

old stone age.

-mabel < 3