Final answer:
The service sector has generated the most increases in employment in the United States since the mid-1980s.
Step-by-step explanation:
Since the mid-1980s, the service sector has generated the most increases in employment in the United States. According to the U.S. Department of Labor's Bureau of Labor Statistics, jobs in services have increased dramatically in the last few decades. In contrast, jobs in manufacturing have declined more than a third since the late 1970s.