Please help me with the right option

A Company uses a job-order costing system with a single plantwide predetermined overhead rate based on labor-hours. The company based its predetermined overhead rate for the current year on total estimated manufacturing overhead cost of $120,000 and 4,000 labor-hours. The job sheet of Job 1112 shows that the number of units produced in this job order is 5 units. This job required 500 labor-hours and incurred direct materials cost of $5,000 and direct labor costs of $15,500. The unit product cost for Job 1112 is: O a. None of the given answers. O b. $2,000 O c. $35,500 O d. $28,100 O e. $7,100