Zwane has a debt that will be R1000 in 11 months. He has 3 options to consider for his repayment. For each option, determine the single payment he will make to fully repay his debt if the cost of money is 15% per annum? (a) now [4] (b) six months from now [4] (c) in one year [4] (d) For Zwane's case above, advise him on the best option to choose and support your answer using the principles of economics. [8]