Richards Corporation uses the weighted-average method of process costing. The following information is available for October in its Fabricating Department: Units: Beginning Inventory: 80,000 units, 60% complete as to materials and 20% complete as to conversion. Units started and completed: 250,000. Units completed and transferred out: 330,000. Ending Inventory: 30,000 units, 40% complete as to materials and 10% complete as to conversion. Costs: Costs in beginning Work in Process - Direct Materials: $37,200. Costs in beginning Work in Process - Conversion: $79,700. Costs incurred in October-Direct Materials: $646,800. Costs incurred in October-Conversion: $919,300. Calculate the cost per equivalent unit of materials. Select one: a. $2.59 Ob. $2.33 Oc. $1.89 Od. $2.20 Oe. $2.00