what is the total cost of research and development of the value chain?

This Question: 1 pt 7 of 31 (5 complete) Lucky Cow Dairy provided the following expense information for May Assembly - line workers' wages Caps for milk bottles Reconfiguring the assembly line Customer support hotline Delivery expenses Depreciation on factory equipment Plastic milk bottles Salaries of salespeople Salaries of research scientists Customer toll-free order line $72,900 3,800 125,100 10,100 20,500 75,800 52,600 63,600 70,300 6.200 A. $70,300 B. $54,800 C. $73,700 D. $195,400