Final answer:
The correct answer to the question is that c) union workers earn significantly more than nonunion employees.
Step-by-step explanation:
When analyzing the relationship between labor unions and wages, it is evident that union workers tend to receive higher pay compared to their nonunion counterparts. Specifically, union members earn about 20% more than nonunion workers, a significant difference that holds true even when accounting for variables such as experience and education level. Despite this advantage in pay, the percentage of U.S. workers in unions has been in decline for decades.
There are several possible answers to the student's question, but based on the information provided, the most accurate response would be option (c), which states 'Union workers earn significantly more than nonunion employees.' This adequately reflects the provided data that union workers have a roughly 20% higher pay rate than nonunion workers. It's important to note that while unions can act as a monopoly in negotiating wages, this does not necessarily translate to union workers 'routinely receiving overtime' or 'the majority of union workers being paid a salary,' as these conditions vary widely across different jobs and union agreements.