Answer:
c. 8% and 8.5%
Explanation:
Calculation to determine his after tax rates of return on the municipal and corporate bonds would be respectively:
Tax rates of return on the municipal=8%*(1-0)
Tax rates of return on the municipal=8%
Tax rates of return on corporate bonds=
10*(1-15%)
Tax rates of return on corporate bonds=10*0.85
Tax rates of return on corporate bonds=8.5%
Therefore his after tax rates of return on the municipal and corporate bonds would be respectively:8% and 8.5%