please help me solve correctly from a through d (a,b,c,d)

A plumbing repair company has 3 employees and must choose which of 3 jobs to assign each to feach employee is assigned to exactly one job and each job must have someone assigned). Each employee can perform each job, but the cost to perform any given job can vary. The following table shows the cost for each employee to perform each job. Solve this assignment problem in Excel to find the lowest cost solution and answer the following questions: a. Which employee is assigned to job 1 ? b. Which employee is assigned to job 2? c. Which employee is assigned to job 3? d. What is the minimum cost to complete all three jobs