Geyer Company uses a weighted average process costing system and started 30,000 unis this manth. Geyer had 12,000 units that were 20 percent complete as to conversion costs in beginning Work in Process tnventory and 3,000 units that were 40 percent complete as to corversion costs in ending Work in Frocess inventory. What are equivalent units for conversion costs? Selectone: a. 40.260 b. 42000 c. 37.800 d. 40,800