You decide you want your child to be a millionaire. You have a son today and you deposit $10,000 in an investment account that earns 7% per year. The money in the account will be distributed to your son whenever the total reaches $1,500,000. How old will your son be when he gets the money (rounded to the nearest year)? A. 74 years B. 49 years C. 60 years D. 82 years