On April 1, there were 150 units in production in the framing department that were 50% complete. Another 760 units were placed into production during the month, and 650 units were completed and transferred to the shipping department, leaving 260 units 20% complete. All materials are added at the beginning of the process, and the total direct materials cost was $147,000. What is the cost per equivalent unit of production for materials? a. $138.68 b. $161.54 c. $193.42 d. $203.42