Mr. B. is an electrician.He contracts with Brittany to change all her light fixtures in her home.The contract is for $50,000.A $10,000 check was provided to start the job.Upon completion of the project, she refuses to pay.What can Mr. B. do to protect his interest and receive his pay?Would your answer change if the work was done to Brittany's warehouse?If yes, what changes would you make?