please show work/give explaination

b l eu dald Ulloal Tevenue and total COSLS to determine CMR ET 800 an 4. Estimate unit variable costs. Production volume was 10 units. fire insurance $100 depreciation $240 rent $200 assembly workers' wages $500 production supervisor's salary $120 direct materials $300 A. $30 per unit B. $50 per unit C. $80 per unit D. $104 per unit E. not enough information it depends on whether the relevant range is fixed or variable 5. Which of the following is a manufacturing overhead cost for a car assembly plant: A. Assembly workers' wages B. Cost of engines and transmissions for cars C. Maintenance costs for production equipment D. Cost of steel used to make car bodies (. Both C and D