You decide to open an individual retirement account (IRA) at your local bank that pays 8 percent/year/month. For the next 30 years, you will deposit $225 per month into the account. Assume that all deposits and withdrawals to the account occur at the end of the month. On the day of the last deposit, you will retire. Your expenses for the first year of your retirement will be covered by a company lump sum retirement bonus; thus, your first withdrawal from your IRA will occur on the day exactly 12 months after the last deposit. What monthly withdrawal can you make if you want the account to last

a. 15 years?

b. 25 years?

c. 40 years?

d. forever?