Answer:
The options are
A. about 10% more; racial discrimination and immigration.
B. about the same; union dues and cost of lawyers for collective bargaining.
C. about 20% more; years of work experience and education level.
D. about 30% more; healthcare and retirement benefits.
C. about 20% more; years of work experience and education level.
D. About 30% more; healthcare and retirement benefits
The answer is C. about 20% more; years of work experience and education level.
Union members are the active participants in the interest groups representing a cause. This is usually to push for the improvement of the welfare of members of the group of people under them.
It is understood that Union members earn about 20% more than non-union members, even after adjusting for factors such as years of work experience and educational level.