Lori borrows 10000 for 10 years at an annual effective interest rate of 9%. At the end of each year, she pays in interest on the loan and deposits the level amount necessary to repay the principal into a sinking fund earning an annual effective interest rate of 8%. The total of all payments (i.e. interest payments and sinking fund payments) made by Lori over the 10-year period is X. Find X. (a) 15803 (b) 15853 (c) 15903 (d) 15953 (e) 16003