Suppose you deposit $2,000 at the end of each year for 4 years, followed by annual deposits of $6,000 for the next 4 years. You then leave the balance untouched earning interest. How much would you have in the account by the end of year 21 if the interest rate iS 2.9%? a. $56,436 b. $60,348 c. $49,929 d. $36,375 e. $68,095