Gelly Corp. allocates manufacturing overhead using machine hours. Gelly estimated 12,000 machine hours and $93,000 of manufacturing overhead costs for the year.Actual machine hours were 16,000, and the following actual costs were incurred: Direct Labor: $75,000, Period Costs: $137,000, Manufacturing Overhead: $83,000 What is Gelly's predetermined overhead rate? A. $5.19/machine hour B. $5.81/machine hour C. $6.92/machine hour D. $7.75/machine hour