A person received a birthday gift of $10,000 at age 20. He is not expecting to use that money soon so he puts that money in a separate account. With a compound interest of 6%/yr, how much money will he have in that account when he retires at the age of 62? (use 72 rule to estimate) O A $80,000 OB. $160,000 OC.>$160,000 OD. between $80,000 and $160,000