9. Daguio Corporation uses direct labor-hours in its predetermined overhead rate. At the beginning of the year, the total estimated manufacturing overhead was $186,500. At the end of the year, actual direct labor-hours for the year were 15,500 hours, manufacturing overhead for the year was underapplied by $14,100, and the actual manufacturing overhead was $181,500. The predetermined overhead rate for the year must have been: a) $9.93 per direct labor-hour b) $11.74 per direct labor-hour c) $10.80 per direct labor-hour d) $11.46 per direct labor-hour