The Cardstock Manufacturing Division of the Pulp Paper Company reported the following results from the past year. Shareholders require a return of 9%. Management calculated a weighted - average cost of capital (WACC) of 5%. The company's corporate tax rate is 40%. Sales Operating income Total assets Current liabilities What is the division's sales margin? $700,000 70,000 $1,700,000 400,000 OA. 4.12% B. 10% C. 41.18% D. 23.53%