Assume that Nader earns 32,000 a year after tax, working for a construction company as a junior engineer. He is considering the possibility of leaving the company and starting his own business. To do this, he will have to use all his 50,000 savings that are currently invested at a net interest rate of 5% He estimates that the annual profit from his own business will be at least 40,000 net of tax. Required: a-Should he start the business? Show your working ( 10 marks) b-Define opportunity costs. Are they relevant or irrelevant costs in the decision making process