Weston Mines Has a Cost of Equity of 19

Weston Mines has a cost of equity of 19.8 percent, a pre-tax cost of debt of 9.4 percent, and a return on assets of 17.1 percent. Ignore taxes. What is the debt-equity ratio?

A) 0.35
B) 0.41
C) 0.47
D) 0.56
E) 0.62