The cost of capital for a furm, WACC, in a zero tax environment is: a. equal to the expected earnings divided by market value of the unlevered firm. b. equal to the rate of return for that business risk class. C. equal to the overall rate of return required on the levered firm. d. is constant regardless of the amount of leverage.

i. all of the answers it. bonly ili. a only iv. conly v. donly vi. none of the answers