Which of the The management accountant for Martha's Book Store has prepared the following income statement for the most current year. Cookbook Travel Book Classics Total Sales $60,000 $100,000 $40,000 $200,000 Variable cost of goods sold 36,000 65,000 20,000 121,000 Contribution margin 24,000 35,000 20,000 79,000 Directly Traceable FC: Delivery cost 18,000 21,000 8,000 47,000 Salary expense 2,000 1,000 3,000 6,000 Allocated Common FC 7,000 7,000 7,000 21,000 Net Income $ (3,000) $ 6,000 $ 2,000 $ 5,000 If the classics product line is discontinued which causes a 10% decrease in the sales of cookbooks what affect will this have on the overall net income of Martha's Book Store? a. decrease net income by $10,400 b. decrease net income by $11,400. c. decrease net income by $12,400 d. decrease net income by $13,400following best describes a sunk cost? A. One that is relevant to a decision because it changes depending on the alternative course of action selected B. An outlay expected to be incurred in the future C. A historical cost that is always irrelevant D. A historical cost that may be relevant