You want to have $1,970,000 at the end of 22 years. You have $6,000 to invest now, and you will receive $70,000 at the end of 10 years. In addition, you plan to invest an equal amount at the end of every year over the next 22 years to reach your goal. If the annual rate of interest is 6.40% , how much do you have to invest annually?

a. $41,586

b. $154,648

c. $36,722

d. $39,503

e. $43,254