Ben has $300,000 invested at 7.5%, and he now wants to retire. He wants to withdraw $35,000 at the beginning of each year, beginning immediately. He also wants to have $21,341.11 left to give his grandchild when he ceases to withdraw funds from the account. For how many years can he make the $35,000 withdrawals and still have $21,341.11 left in the end? a. 12,00 b. 14.63 c. 13.27 d. 12.61