Conversion costs in a car factory include: a. engines, bodywork, line employee payroll, supervision, plant insurance, design engineer, factory electricity, sales equipment depreciation, freight on merchandise sold (transportation out) b.line employee payroll, factory supervision, factory depreciation, R&D engineer payroll, testing materials, distribution warehouse depreciation. c.engines, bodywork, line employee payroll d.engines, bodywork, auto lubricants, equipment depreciation, factory supervision, factory maintenance

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Prime costs in a car factory include: a.engines, bodywork, line employee payroll, supervision, plant insurance, design engineer, factory electricity, sales equipment depreciation, freight on merchandise sold (transportation out) b.line employee payroll, factory supervision, factory depreciation, R&D engineer payroll, testing materials, distribution warehouse depreciation. c.engines, bodywork, line employee payroll d.engines, bodywork, auto lubricants, equipment depreciation, factory supervision, factory maintenance