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A bond's credit ratingt provides a guides to its risk. suppose that long term bonds Aa currently offers yield to mjaturity of 7.5%. A-rated bonds sell at yields of 7.8%. Sud- pose that a 10-year bond with a coupon rate of 7.6% is downgraded by Moody's from an Aa to A rating.

Required:
a. Is the bond likely to sell above or below par value before the downgrade?
b. Is the bond likely to sell above or below par value after the downgrade?