Assume (1) a company's plantwide predetermined overhead rate is $13.00 per direct labor-hour, and (2) its job cost sheet for Job X shows that this job used 18 direct labor-hours and incurred direct materials and direct labor charges of $500 and $360, respectively. If Job X contains 60 units, then its unit product cost is closest to: Multiple Choice $15.71 $18.23 $14,63 $1223