Country Furniture Company manufactures furniture at its​ Akron, Ohio, factory. Some of its costs from the past year​ include: Depreciation on sales office: ​ $9,700 Depreciation on factory equipment 16,700 Factory supervisor salary 50,800 Sales commissions 23,900 Lubricants used in factory equipment 3,300 Insurance costs for factory 21,100 Wages paid to maintenance workers 115,900 Fabric used to upholster furniture 10,300 Freightminusin ​(on raw​ materials) 3,300 Costs of delivery to customers 9,100 Wages paid to assemblyminusline workers 115,700 Lumber used to build product 82,900 Utilities in factory 54,600 Utilities in sales office 26,600 Conversion costs for Country Furniture Company totaled: a. $378,100.b. $486,500.c. $526,500.d. $510,500.