Roy's Welding Has a Cost of Equity of 14

Roy's Welding has a cost of equity of 14.1 percent and a pretax cost of debt of 7.7 percent. The required return on the assets is 13.2 percent. What is the debt-equity ratio based on M&M II with no taxes?

A) .164
B) .217
C) .408
D) .108
E) .583