A loan of R15 080,00 is being repaid by 14 half-yearly payments, with the first payment made one half year after the loan is taken out. The interest rate is 9% per year, compounded half-yearly. The size of each of the half-yearly payments is R1475,13. This is represented by the following timeline: After four years the interest rate drops to 8,5% per year, compounded half-yearly. The size of the new half-yearly payments, rounded to the nearest rand, is Select one: O a. R1142,00. O b. R1463,00. O c. R1871,00. o d. R1451,00