Jenny borrows 10,000 for 15 years at an annual eective interest rate of 10%. At the end of each year, she pays the interest on the loan and deposits the level amount necessary to repay the principal to a sinking fund earning an annual eective interest rate of 8%. What is the total of all interest payments and sinking fund deposits made by Jenny over the life of the loan? (A) 20,136 (B) 20,524 (C) 20,847 (D) 21,238 (E) 21,602