Arrowhead Incorporated wants to invest $100,000 in marketable securities. It has a choice between corporate bonds which yield 7 percent, municipal bonds which yield 5.3 percent, and preferred stock with a dividend yield of 6 percent. The firm's corporate marginal tax rate is 25 percent. Which of the investments would have the highest after-tax yield? (Use old tax rules.) A. The municipal bonds with an after-tax yield of 5.30%. B. The preferred stock with an after-tax yield of 4.50%. C. The corporate bonds with an after-tax yield of 5.25%. D. The municipal bonds with an after-tax yield of 4.50%. E. The preferred stock with an after-tax yield of 5.55%. Arrowhead Incorporated wants to invest $100,000 in marketable securities. It has a choice between corporate bonds which yield 7 percent, municipal bonds which yield 5.3 percent, and preferred stock with a dividend yield of 6 percent. The firm's corporate marginal tax rate is 25 percent. Which of the investments would have the highest after-tax yield? (Use old tax rules.) A. The municipal bonds with an after-tax yield of 5.30%. B. The preferred stock with an after-tax yield of 4.50%. C. The corporate bonds with an after-tax yield of 5.25%. D. The municipal bonds with an after-tax yield of 4.50%. E. The preferred stock with an after-tax yield of 5.55%