17) Peacock Company sells its product for $100 per unit. The company's accountant provided the following cost information: Manufacturing Costs: $20,000 + 40% of Sales Selling Costs: $10,000 + 20% of Sales Administrative Costs: $15,000 + 10% of Sales What is Peacock Company's contribution margin ratio A. 30% B. 40% C. 60% D. 70%