Answer:
b. an independent contractor.
Step-by-step explanation:
An independent contractor is a person or a firm or organization who provides service or works for any individual or organization for a particular type of work. Both the parties enter into a mutually agreed contract in verbal or written forms. Unlike employees, the independent contractors works as required and does not work permanently or regularly for an employer.
In the context, Napoleon is an independent contractor who takes the contract of renovating the bathroom of Mrs. Cernan. Mrs. Cernan is the client of Napoleon. He will work temporarily for Mrs. Cernan for a fix agreement.
Hence the correct option is (b).