4. As a rational investor, you have just purchased a bond from a broker for $990. The bond has 6 years to maturity and a 12.1% coupon rate. What can you comment about the price you paid for the bond? Later, you received a call from the same broker who advised you that the bond was a semi-annual coupon bond instead of an annual coupon bond which you thought you purchased. Did you make a good purchase? (Assume that the annual market interest rate is 12.4% per annum)