Aside from poor performance, what are two major reasons for extended unemployment in construction?

The correct choice highlights two significant external factors that can lead to prolonged periods of unemployment in the construction industry. Extreme weather conditions can halt construction projects, causing delays and temporary shutdowns, which in turn affect the availability of jobs for workers. Economic recessions are another critical factor, as they can lead to a decrease in demand for construction projects due to reduced investments and spending in the economy. When both of these circumstances occur, they can create a prolonged lack of job opportunities, leading to extended unemployment in the field.

While other options may touch on relevant issues, they do not encompass the widespread impact of adverse weather and economic downturns on the construction labor market as effectively. For example, injury and accidents are certainly risks in the construction field, but they tend to affect individuals rather than the overall workforce availability. Job saturation and lack of skills, though valid points, are often more about the qualifications of workers rather than external conditions leading to unemployment across the board. Similarly, company downsizing and relocation can also be causes of job loss but do not cover the broader environmental and economic aspects that significantly influence employment rates in construction. This makes the choice encompassing extreme weather and economic recessions the most appropriate answer.