You want to buy a car that will cost $35 000. If you put $20.000 into an investment portfolio that pays an average 5% return per year, how long must you wait to buy the car? Select one: O a. Approximately 10.5 years. O b. Approximately 11.5 years. o c Approximately 9.5 years. od Approximately 12.5 years. O e. Approximately 3.5 years