Answer:
Municipal bond
Explanation:
We can clearly find out which bond to select by finding their equivalent taxable yield.
DATA
Coupon rate (corporate bond) = 6.25%
Coupon rate (municipal bond) = 4.75%
Marginal income tax = 28%
Equivalent taxable yield of municipal bond = coupon / (1-tax rate)
Equivalent taxable yield of municipal bond = 4.75% / (1-0.28)
Equivalent taxable yield of municipal bond = 6.6%
Hence municipal bond must be selected having a higher equivalent taxable yield as compared to corporate bond.