Given the following partial amortization table: PR(t) OB(t) Time K(t) l(t) 0 2,025.16 4,510.04 21,790.74 2 3 5 Compute OB(2) O a. S16,933.43 O b. $20,150.78 O c $19,642.78. O d. $20,658.79. O e. $21,166.79. Certainty : C=1 (Unsure: 67%) OC= 3 (Quite sure: > 80%)