Tyre Corporation had the following inventory balances at the beginning and end of May Raw materials Finished Goods Work in Process May 1 $33,000 $82,500 $21,000 May 30 $45,000 $81,000 $17,655 During May, $66,000 in raw materials (all direct materials) were drawn from inventory and used in production. The company's predetermined overhead rate was $12 per direct labor-hour, and it paid its direct labor workers $15 per hour. A total of 450 hours of direct labor time had been expended on the jobs in the beginning Work in Process Inventory account. The ending Work in Process inventory account contained $7,800 of direct materials cost. The Corporation incurred $44,250 of actual manufacturing overhead cost during the month and applied $44,100 in manufacturing overhead cost. The actual direct labor-hours worked during May totaled: Multiple Choice 5,400 hours O 3.675 hours O 2.950 hours 3,688 hours