Time value Annuities Marian Kirk wishes to select the better of two 10- year annuities, C and D. Annuity C is an ordinary annuity of $ 2,500 per year for 10 years. Annuity D is an annuity due of $ 2,200 per year for 10 years. a. Find the future value of both annuities at the end of year 10, assuming that Marian can earn ( 1) 10% annual interest and ( 2) 20% annual interest. b. Use your findings in part a to indicate which annuity has the greater future value at the end of year 10 for both the ( 1) 10% and ( 2) 20% interest rates. c. Find the present value of both annuities, assuming that Marian can earn ( 1) 10% annual interest and ( 2) 20% annual interest. d. Use your findings in part c to indicate which annuity has the greater present value for both ( 1) 10% and ( 2) 20% interest rates. e. Briefly compare, contrast, and explain any differences between your findings using the 10% and 20% interest rates in parts b and d