The following function estimates the t-year forward rates. 121 - -0.000157 +0.005+ + 0.044 Osts 10 (Thus, 12.3 is the forward rate for the third year, or equivalently, time interval (2,3)) Calculate the 3-year maturity term spot rate using the estimated forward rates from the previous function. 5.2% 6.8% 5.8% 15.3% 4.9%