C- John and Mary are trying to build a nest egg to use in the future. They would like to know how much they need to set aside in a single lump sum today to be equivalent to investing $8,000 each year starting today to reach this goal. John indicates that they will use the money 20 years from today while Mary thinks that a 5% rate of return is appropriate for their risk level. Calculate the equivalent present value of this annuity due stream