Final answer:
The future of the American workforce is expected to see continued growth in the service sector, with service and healthcare jobs playing dominant roles due to economic shifts towards a postindustrial service economy. The correct option is d. in the service sector
Step-by-step explanation:
In the future, the American workforce is expected to increase d. in the service sector. Historical data and trends from various sources, including the U.S. Bureau of Labor Statistics, indicate a significant shift in employment patterns, with a decrease in manufacturing jobs and an increase in service-related jobs.
This trend is attributed to the rise of the information age and the shift toward a postindustrial service economy in the latter part of the 20th century. As a result, by the early 21st century, a large portion of the workforce, almost 80%, was employed in the service sector.
It is also important to consider the quality of service sector jobs. While some can offer good wages and conditions, there has been a growing divide in the American economy with well-paying service jobs often requiring higher skills, such as computer programming, and a proliferation of low-wage service positions as well.
Looking at the United States' historical economic development and its current trajectory, there is an evident focus on service and healthcare industries as key areas of job growth and demand. The correct option is d. in the service sector