Reliant Inc. operates a chain of retail stores selling household items. The Appliance division is among the most profitable in the company and, of those, the high-end refrigerators show the strongest sales. For August, the company incurred the following costs for refrigerator sales. Professional sales staff commissions $126,000.00 Amortization on office space $6,000.00 Selling supplies $9,600.00 Office staff expenses $37,200.00 Customer relations $12,900.00 Training expenses $9,000.00 Utilities $2,100.00 Required: (A) Which of the costs listed above can be traced directly to refrigerator sales? (B) What is the total cost for refrigerators? (C) What is the total cost of the sales support for refrigerators