Answer:
The correct answers are:
Roman is a principal
Velma is an agent
Umberto is an employee
Warren is an independent contractor
Explanation:
Roman is a principal due to the fact that he is the one who is in the highest position of them all and he has no superior in the company
Velma is an agent because she is under the control of the company.
Teri is an employee because she has to deal with the day-to-day operations and has a superior. And Umberto is an employee because he is in the lowest positions and is controlled by Teri
Warren is an independet contractor because he is not subejct to the company's control