The following information is related to Alpha Company: Estimated manufacturing overhead costs for the year Actual manufacturing overhead costs for the year Estimated direct labor hours for the year Actual direct labor hours for the year $254,000 $202,000 50,000 35,000 Alpha uses normal costing and applies overhead on the basis of direct labor hours. The predetermined overhead rate of Alpha Company is: a. $7.3 per hour. b. $4.0 per hour. c. $5.1 per hour. d. $8.8 per hour