24. Credit Risk. A bond's credit rating provides a guide to its risk. Long-term bonds rated Aa cur- rently offer yields to maturity of 7.5%. A-rated bonds sell at yields of 7.8%. If a 10-year bond with a coupon rate of 7% is downgraded by Moody's from Aa to A rating, what is the likely effect on the bond price? (LO4)