\begin{tabular}{|l|r|} \hline Security & Yield (\%) \\ \hline Treasury & 3.06 \\ \hline AAA corporate & 3.19 \\ \hline BBB corporate & 4.11 \\ \hline B corporate & 4.84 \\ \hline & \\ & \\ USE EXCEL TO SOLVE & \\ \hline \end{tabular} a. What is the price (expressed as a percentage of the face value) of a oneyear, zero-coupon corporate bond with a AAA rating? 7 b. What is the credit spread on AAA- 8 rated corporate bonds? c. What is the credit spread on B-rated 9 corporate bonds? d. How does the credit spread change with the bond rating? Why? 10