Ed and Edna are both medical doctors and have just finished paying off their medical school loans. Ready to get serious about saving for retirement, they want to set aside funds from their practices at the end of each year so that their retirement fund will be $10 million in 30 years. They assume an average portfolio return of 6.5% before they retire, a 4.5% average return after they retire, and a 2.5% average inflation rate. They want to plan for a retirement lasting 35 years. How much will they need to save each year? A. $80,620. B. $108,710. C. $115,775. D. $88,560. E. $86,400.