You are planning for your son's college education to begin five years from today. You estimate the yearly tuition, books, and living expenses to be $5,000 per year for a four-year degree, assuming the expenses incur only at the end of the year. How much must you deposit today, at an interest rate of 8 percent, for your son to be able to withdraw $5,000 per year for four years of college? None of the given answers is correct $39,520 $20,000 $13,620 $11,270