How much must you deposit at the end of each of the next 14 years so that beginning fifteen years from now, you can withdraw $10,000 a year for the next six years (periods 15 through 20)? Assume an interest rate of 6% compounded annually.

a. $2,112.62

b. $3,512.37

c. $2,855.09

d. $2,339.90

e. $3,333.33