Rodrigo Owns a Small Business,XYZ Heating and Cooling

Rodrigo owns a small business,XYZ Heating and Cooling.Although XYZ is a small business,there can be a lot of tension in the workplace since most of the employees have very different backgrounds.Recently several employees have complained about harassment in the workplace based on their national origin.Rodrigo wants to avoid any liability,and has asked you to explain whether this kind of behavior can lead to legal difficulties for him.Briefly describe when harassment based on national origin may become problematic.