Serdar deposited $7,000 today at 9 percent interest rate for 20 years. You want to have the same amount saved in your account at the end of the 20 years. But, you called your bank and you can only earn 8 percent interest. How much more money must you deposit today than Serdar in order to achieve that goal? O a. $1,600.86 O b. $790.60 C. $720.82 d. $1,416.91 e. $1,200.73