Find the present value of a complex annuity, assuming the interest rate is 10% per period. Which of the following Excel formulas is/are correct? 5 2 3 0 500 100 100 100 100 100 100 A -PV(10%, 7.-100, 0, 1) + PV(10%, 40,- 400,0) B.-PV[10%, 6.100,0,1)+ PV(10%, 4.0,- 400,0) C. NPV(10%, 100, 100, 100, 100, 500, 100, 100) Both A and Both Band C