Alpha Corporation purchased several municipal bonds and AAA corporate bonds ylelding an average of four percent and six percent, respectively. Additionally, it also purchased preferred stock, on a publicly traded company, with a dividend yield of seven percent Alpha Corp, retains ownership over 0.2 percent of total market capitalization of the aforementioned publicly traded company. If the Alpha Corporation were in the 20 percent tax bracket, its after-tax return on the municipal bonds, corporate bonds, and the publicly traded company's preferred stock would be: & , respectively. Multiple Choice 4 percent, 48 percent & 6.58 percent, 4 percent, 4.8 percent, & 4.9 percent, 4.8 percent, 6 percent, &7 percent 5 percent. 5.06 percent, 66.56 percent. 4 percent, 48 percent & 56 percent.