The production costs to produce one unit of nished goods was $60. Direct materials were 1/4 of the total cost, and direct labor was 30% of the combined total of direct labour and direct materials. The cost for direct materials, direct labor, and factory overhead was ( ROUND THE NUMBERS): Q 39, 6, 15 Q 6,15, 39 O 15, 6, 39 0 none of them