To calculate the after-tax cost of debt, multiply the before-tax cost of debt by Western Gas & Electric Company (WGC) can borrow funds at an interest rate of 10.20% for a period of four years. Its marginal federal-plus-state tax rate is 45%. wGC's after-tax cost of debt is places). (rounded to two decimal At the present time, Western Gas & Electric Company (WGC) has 5-year noncallable bonds with a face value of $1,000 that are outstanding. These bonds have a current market price of $1,050.76 per bond, carry a coupon rate of 10%, and distribute annual coupon payments. The company incurs a federal-plus-state tax rate of 45%. If WGC wants to issue new debt, what would be a reasonable estimate for its after-tax cost of debt (rounded to two decimal places)? O 5.75% O 4.79% o 5.51% O 4.31%