A bond currently has a semiannual yield of 5% and a Macaulay duration of 4.5 years. An investor plans to purchase the bond and hold it for 5 years. What would be the investor's holding period return on a semiannual basis over this 5-year horizon if there is a one-time increase in the bond yield after the purchase? Assume that the yield curve is flat. O greater than 5% O equal to 5% O cannot be determined O lower than 5%