Gina would like her son to become a millionaire. As part of reaching this goal, Gina deposits $100,000 in an investment account today, which earns 7% per year. The money in the account will be distributed to her son whenever the total reaches $1,500,000. How old will the son be when he gets the money? Round your answer to the nearest year. Select one: O a. 82 years b. 60 years O c. 74 years d. 40 years