Fir A variable rate demand loan showed an initial balance of $20 000.00, payments of $5000.00 after six months, $10000.00 after one year, and a final payment after two years. Interest was 6% compounded semi-annually for the first year and 12% compounded monthly for the remaining time. You wish to calculate how much was the size of the final payment? en Select one: O a. $6937.57 b. $7237.57 OC. $6837.57 d. $7137.57 e. $7037.57 A variable rate demand loan showed an initial balance of $20 000.00, payments of $5000.00 after six months, $10000.00 after one year, and a final payment after two years. Interest was 6% compounded semi-annually for the first year and 12% compounded monthly for the remaining time. You wish to calculate how much was the size of the final payment? Select one: O a. $6937.57 O b. $7237.57 O C. $6837.57 O d. $7137.57 e. $7037.57