t K Bert's Bottles provided the following expense information for July Assembly-line workers' wages Depreciation on factory equipment Caps for bottles Plastic bottles Reconfiguring the assembly line Salaries of salespeople Customer support hotline Salaries of research scientists Delivery expenses Customer toll-free order line What is the total cost for the design category of the value chain? OA. $123,900 OB. $187,500 Oc. $245,500 OD. $179,900 $56,000 $35,300 $3,400 $52,700 $123,900 $63,600 $12,200 $65,600 $40,000 $8,300