Question 4 (1 point) You have accumulated the amount of $5,000,000 in your retirement account. During the 30 years of your retirement, you want to withdraw a constant sum of money at the end of each year to support your standard of living. However, 30 years later you would like to have left in the retirement account exactly $1,000,000 to be given to philanthropy. Assuming that your retirement account can earn 9% annual rate of return over the next 30 years, what is the constant sum of money you can afford to withdraw each year? O a) $510,823.38 b) $341,228.65 c) $238,761.96 d) $479,345.41