The following information pertains to a manufacturing company which uses weighted average method: Work in process, beginning. direct materials $550,000 and conversion $450,000, Costs added in current period, direct materials $750,000 and conversion $1,050,000, cost per equivalent unit, direct materials $150 and conversion $300. Using FIFO method, the equivalent units of materials is O a. 2,750 units. b. 5,000 units O c. 3,750 units. O d. 6,500 units