19. Ms X borrows 5000 at 5% annual effective interest, with payments at end of each year. The lender keeps the interest portion and accumulates the principal portion in a fund at 3.5% until loan is paid in full. Ms X pays 750 each year until a smaller payment will complete the loan payment. What is the amount of this last payment, including interest? (a) 350 (b) 84 (c) 724 (d) 524 (e) 566 (f) 687