Erna Corp. has 3 million shares of common stock outstanding. The current share price is $70, and the book value per share is $7. Erna Corp. also has two bond issues outstanding. The first bond issue has a face value of $85 million, has a 7 percent coupon, matures in five years, and currently trades for $89 million. The second issue has a face value of $50 million, has an 8 percent coupon, matures in nine years, and currently trades for $60 million. The company corporate tax rate is 10%. What is Erna's weight on equity in the WACC formula? A) 0.262 B) 0.585 C) 0.800 D) 0.812 E) 1.407