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During May, $62,500 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 380 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 $7,450 of direct materials cost. The Corporation incurred $43,200 of actual manufacturing overhead cost during the month and applied $42,000 in manufacturing overhead cost The actual direct lobor-hours worked during May totaled: Multiple Choice 2.880 hours 3,600 hours 3,500 hours 4,560 hours