Bluebell Manufacturing bases its manufacturing overhead budget on budgeted direct labor-hours. The direct labor budget indicates that 1,565 direct labor-hours will be required in March. The variable overhead rate is $8.9 per direct labor-hour. The company's budgeted fixed manufacturing overhead is $16,425.4 per month, which includes depreciation of $2,600. All other fixed manufacturing overhead costs represent current cash flows. The company recomputes its predetermined overhead rate every month. The predetermined overhead rate for March should be: Select one: O a. $15 b.$7 O c. $13,937 O d. $363,818