Susan is 65 years old and has a fully vested pre-tax account balance of $1,500,000 in her 401k. She has decided to follow the 4% rule and begin to distribute funds from her qualified plan this year. Assuming a 20% tax rate, what is the amount of her after-tax withdrawal for this year? 1) $39,000 2) $48,000 3) $52,000 4) $60,000