Outose Concept manufactures small tables in its Processing Department. Direct materials are added at the initiation of the production cycle and must be bundled in single kits for each unit. Conversion costs are incurred evenly throughout the production cycle. Before inspection, some units are spoiled due to undetectable materials defects. Spoiled units generally constitute 3% of the good units. Data for December 2017 are as follows: WIP, beginning inventory 12/1/2017 22,700 units Direct materials (100% complete) Conversion costs (80% complete) Started during December 76,300 units Completed and transferred out 12/31/2017 72,100 units WIP, ending inventory 12/31/2017 18,100 units Direct materials (100% complete) Conversion costs (60% complete) Costs for December: WIP, beginning Inventory Direct materials $151.000 Conversion costs 76.900 Direct materials added Conversion costs added 294,000 231.400 What is the total cost per equivalent unit using the weighted average method of process costing? (Round any cost per unit calculations to the nearest cent.) O A. $7.90 O B. $3.86 O C. $3.69 OD. $4.04