Data table (Click on the following icon in order to copy its contents into a spreadsheet.) Important: The yields displayed are annually compounded yields. Security Yield (%) Treasury 3.10 AAA corporate 3.20 BBB corporate 4.20 B corporate 4.90 I The following table summarizes the yields to maturity on several one-year, zero-coupon securities: a. What is the price (expressed as a percentage of the face value) of a one-year, zero-coupon corporate bond with an AAA rating? b. What is the credit spread on AAA-rated corporate bonds? c. What is the credit spread on B-rated corporate bonds? d. How does the credit spread change with the bond rating? Why