Suppose that the market interest rate is 8% and then drops overnight to 4%. Calculate the present values of a 7.5% coupon rate, 3-year bond and a 7.5% coupon rate, 30-year bond before and after the change in interest rates. Assume face value of $1,000 and semiannual coupon payments. If you had the opportunity to invest in one of these securities, which one would you choose and why? Calculate rates of return to support your answer. Would you prefer a savings account that paid 7% interest compounded quarterly, 6.8% compounded monthly, or an account that paid 7.5% with annual compounding