The correct answer to this open question is the following.
The guidelines you will develop for supervisors to successfully respond to employee questions about unionization would be the following.
The first thing the supervisor can do is establish an open door policy to always listen to employees' concerns. This is of the utmost importance because one of the factors that impact employee's morale is the lack of communication and the sentiment of not being important for the organization.
An open line of communication from the very top of the hierarchy to the very bottom of the company is of so much help for the workers feel comfortable to express their opinions, and do not try to look for unions to be heard.
What the supervisors can say that is legally permissible in this situation is to inform workers that they have the right to express themselves and be heard, as well as freely join the union they feel most comfortable with, always inviting the worker to first directly address their issues within the company.
