You plan on attending graduate school for 2 years starting 5 years from now. Each year of graduate school will cost you $25,000. You begin saving for graduate school starting 2 years from now and save for 3 years. How much must you invest each year, starting two years from now, for 3 years such that your investment will grow to just cover the cost of graduate school? Your investments earn 4% APR (compounded annually).

$15,105

$16,835

$15,717

$16,667