12. Bond A is a 4 year coupon bond with a 75% coupon rate, a $1000 face value, and a 2% yield to maturity. Bond B is a comparable (i.e. - with similar liquidity, default risk, and tax treatment) 3 year, zero coupon bond, with a $1000 face value and a 2% yield to maturity. Calculate the "duration" of both bonds. For an investor with an investment horizon of 1 year, which bond is a riskier investment? Explain. a. b