The following table summarizes the yields to maturity on several one-year, zero-coupon sec displayed in the table are annually compounded yields.) a. What is the price (expressed as a percentage of the face value) of a one-year, zero-coupo 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? Data table (Click on the following icon in order to copy its contents into a spreadsheet.) Security Yield Treasury 3.14% AAA corporate 3.20% BBB corporate 4.19% B corporate 4.97%