E: Whitlock & Daily Corporation has $350,000 that it wants to invest. It is choosing between Google corporate bonds that yield 8.70 percent, state of Texas municipal bonds that yield 5.72 percent, and AT&T preferred stock with a dividend yield of 6.90 percent. The corporation's tax rate is 35 percent. Which security would have had the highest after-tax yield using the 2017 tax rules? a. Google corporate bonds with an ATY of 5.66 percent. b. AT&T preferred stock with an ATY of 4.49 percent. c. Google corporate bonds with an ATY of 7.79 percent. d. AT&T preferred stock with an ATY of 6.18 percent. o. State of Texas municipal bonds with an ATY of 5.72 percent