(b) Assume that Starbucks is planning to buy new coffee machine. They can buy Dolce coffee machine which will cost 5000. The firm can use it for 3 years and each year it will incur maintenance cost of 500. Jacobs Dowe coffee machines will cost 6000 and can be used for 4 years. The maintenance cost of this machine is 400 per year. Which machine the company will buy, if required rate of return is 7% p.a.? (8 marks)