Question 6 Which of the following would reduce a firm's WACC after tax? Not yet saved Marked out of 4.00 Remove flag O a. A firm issues bonds and uses the proceeds to repurchase stock. b. A firm issues shares and uses the proceeds to pay off a bank loan. O c. A firm invests in an average-risk project using equity, rather than debt financing. O d. A supermarket chain decides to establish hardware stores which increases its systematic risk. O e. A firm significantly improves its operating cost control to boost profits