Mapuleng deposits R1 500 at the end of every month into an account that earns 12,5% interest per year, compounded monthly. After two years, she stops making these monthly contributions because the interest rate changes to 15% per year, compounded every two months. If no withdrawals or deposits are made for four years the balance in the account will be A. R73 544,10. B. R65 114,13. C. R40 660,72. D. R72 517,49