5 pts You live in a country with a flat tax rate of 21% on all income, except a special class of tax-free bonds. If the return on these tax-free bonds in currently 2.74%, estimate the equilibrium required yield on a taxable bond with exactly the same risk characteristics in all other senses. 0 2.16% 4.61% O 0.58% O 3.47% O 3.97% muestion 16