Harold and Maude Kelley currently are planning for retirement. They feel they will need to receive a payment of $50,000 at the beginning of each year for 20 years. If the Kelley's investments that are the source of this payment are earning a 9% annual return over the course of their retirement, what amount must the Kelley's have accumulated at the time of their retirement to fund this payment?

a) $456,427

b) $497,505

c) $2,558,005

d) $2,788,226