At the present time, you expect a decline in interest rates and must choose between two portfolios of bonds with the following characteristics: Portfolio A Portfolio B Average maturity $10\mathrm{.}5$ yrs $10\mathrm{.}0$ yrs Average YTM $7\%10\%$ Modified duration $5\mathrm{.}7$ yrs $4\mathrm{.}9$ yrs Convexity $125\mathrm{.}1840\mathrm{.}30$ Call features Noncallable Deferred call features that range from $1$ to $3$ years Select one of the portfolios and discuss three factors that would justify your selection.