Company X has 2 million shares of common stock outstanding at a book value of $2 per share. The stock trades for $3.00 per share. It also has $2 million in face value of debt that trades at 90% of par. What is the appropriate debt ratio (D/(D+E)) to use for calculating Company X's weighted-average cost of capital?

23.1%

25.0%

31.0%

33.3%