Hall Corporation uses the weighted-average method in its process costing system. Data concerning the first processing department for the most recent month are listed below: Beginning work in process inventory: Units in beginning work in process inventory. Materials costs. Conversion costs. Percent complete with respect to materials.. Percent complete with respect to conversion. Units started into production during the month Units transferred to the next department during the month. Materials costs added during the month.. Conversion costs added during the month. Ending work in process inventory: Units in ending work in process inventory..... Percent complete with respect to materials... Percent complete with respect to conversion.. 500 $7,700 $2,900 75% 25% 6,700 5,900 $108,600 $121,000 1,300 65% 40% The cost of ending work in process inventory in the first processing department according to the company's cost system is closest to: Select one: O a. $47,503 O b. $19,001+ O c. $24,604 O d. $30,877