Karl Korp. manufactures waterproof cell phone covers. At the beginning of the month, Karl had 50 partially completed cell phone covers on hand. The cost of these partially completed units was $7,000. At the end of the month, Karl had 0 partially completed cell phone covers; all cell phone covers had been completed. During the month, the company incurred the following costs. Direct materials used $21,000 Direct labor wages $34,000 Corporate headquarters rent $25,000 Indirect labor wages $5,000 Production manager's salary $6,000 Factory rent $4,000 Factory utilities $3,000 Chief Executive Officer salary $50,000 What is the total cost of work in process? A $73,000 B $80,000 $55,000