Dovola Inc. is trying to choose between three alternative investments. Dovola is choosing between J. Peterman Inc. preferred stock with a return of 8%, J. Peterman corporate bonds with a return of 8.5% and New York State Municipal bonds with a return of 7.25%. The three securities that the company is considering are as follows: The company's tax rate is 25%. What is the best investment choice and what is the after-tax return on that investment? O Preferred stock, 6.78% O Muni, 6% Corporate bond, 6.38% O Preferred stock, 7% O Muni, 7.25%