Which of the following is an example of structural unemployment? A. Dora lost her job when the textile mill closed. She does not have skills to work in another industry and has been unemployed for over a year. B. Marsha was laid off from her job with the airline because the recession has reduced the demand for airline travel. She expects to get her job back when the economy picks up. C. Alan, a software engineer, lost his job when the internet startup he worked for went bankrupt. He interviewed with five companies in the area before taking a job with another firm in the industry. D. Jim had a job as an engineer, but quit when his wife was transferred to another state. He looked for a month before finding a new job that he liked.