Which of the following limits the freedom of both employers and workers in the labor market

The correct answer to this open question is the following.

What limits the freedom of both employers and workers in the labor market is the minimum wage.

With the establishment of a minimum wage, the government tries to protect the worker with a certain limit of what the worker earns per hour in the workplace. But this does not appeal to the employers that consider that the value of the work can vary, depending on the activity and the quality of work. On the other hand, experts on labor think that if the worker knows it has a minimum wage, it could conform with it and not aspire to look for better opportunities although this represents a risk of losing what they already have

i think the answer is a and i hope this ; ))