The Cardstock Manufacturing Division of the Pulp Paper Company reported the following results from the past year. Shareholders require a return of 6%. Management calculated a weighted average cost of capital (WACC) of 2%. The company's corporate tax rate is 40%. Sales Operating income Total assets Current liabilities What is the division's sales margin? $600,000 90,000 $1,500,000 700,000 A. 46.67% B. 15% C. 40% D. 6%