4. U KNO, Inc. uses only debt and common equity funds to finance its assets. This past year the firm's return on total assets was 19%. The firm financed 30% percent of its assets using debt. What was the firm's return on common equity?

a. 24.36%

b. 63.33%

c. 47.26%

d. 69.50%

e. 27.14%